Data / Rankings / Uninsured rate, ages 18 to 64 (US model-based estimate) / Counties in Texas

Counties in Texas by uninsured rate, ages 18 to 64 (US model-based estimate)

Hidalgo County had the highest uninsured rate, ages 18 to 64 (US model-based estimate) of 254 counties in 2018, at 42.8%. Borden County had the lowest, at 12.2%. The median was 24.3% and the figure for Texas was 23.8%. Source: the U.S. Census Bureau.

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Highest42.8Hidalgo County
Lowest12.2Borden County
Median24.3254 counties
Texas23.8History

Map of counties, 2018

Anderson County: 23.8 %Andrews County: 25.1 %Angelina County: 25.8 %Aransas County: 27.1 %Archer County: 18.4 %Armstrong County: 19.1 %Atascosa County: 24.6 %Austin County: 23.1 %Bailey County: 35.8 %Bandera County: 24 %Bastrop County: 25.6 %Baylor County: 18.8 %Bee County: 22.8 %Bell County: 19.2 %Bexar County: 21.9 %Blanco County: 23.4 %Borden County: 12.2 %Bosque County: 26.7 %Bowie County: 18.5 %Brazoria County: 19.2 %Brazos County: 18.8 %Brewster County: 22.5 %Briscoe County: 29.2 %Brooks County: 23.4 %Brown County: 21.1 %Burleson County: 23.4 %Burnet County: 27 %Caldwell County: 25.6 %Calhoun County: 22.7 %Callahan County: 22.1 %Cameron County: 38.9 %Camp County: 25.2 %Carson County: 16.8 %Cass County: 19.7 %Castro County: 35.8 %Chambers County: 17.7 %Cherokee County: 27.1 %Childress County: 25.9 %Clay County: 20.6 %Cochran County: 32.5 %Coke County: 19.5 %Coleman County: 27.9 %Collin County: 14.5 %Collingsworth County: 34.6 %Colorado County: 24.7 %Comal County: 17.5 %Comanche County: 28.5 %Concho County: 22.5 %Cooke County: 24.2 %Coryell County: 18.6 %Cottle County: 28.1 %Crane County: 23.6 %Crockett County: 25.2 %Crosby County: 24.3 %Culberson County: 28.7 %Dallam County: 35.6 %Dallas County: 28.1 %Dawson County: 28.7 %Deaf Smith County: 31.8 %Delta County: 19.9 %Denton County: 15.2 %DeWitt County: 21.6 %Dickens County: 24.3 %Dimmit County: 26.5 %Donley County: 22.2 %Duval County: 25.3 %Eastland County: 24.6 %Ector County: 25.7 %Edwards County: 27.8 %Ellis County: 21.4 %El Paso County: 30.1 %Erath County: 23.9 %Falls County: 24.3 %Fannin County: 23.4 %Fayette County: 21.5 %Fisher County: 21.6 %Floyd County: 28.4 %Foard County: 25.3 %Fort Bend County: 15.7 %Franklin County: 20.5 %Freestone County: 24.3 %Frio County: 28.1 %Gaines County: 37.4 %Galveston County: 20.3 %Garza County: 27.2 %Gillespie County: 24.3 %Glasscock County: 20.7 %Goliad County: 17.4 %Gonzales County: 30.9 %Gray County: 28.8 %Grayson County: 23.7 %Gregg County: 25.6 %Grimes County: 25.8 %Guadalupe County: 17.5 %Hale County: 27.8 %Hall County: 34.2 %Hamilton County: 26.2 %Hansford County: 31.9 %Hardeman County: 28.8 %Hardin County: 18.3 %Harris County: 27.1 %Harrison County: 22 %Hartley County: 25.6 %Haskell County: 29.9 %Hays County: 20.2 %Hemphill County: 27.8 %Henderson County: 26.2 %Hidalgo County: 42.8 %Hill County: 27.2 %Hockley County: 27.1 %Hood County: 19.8 %Hopkins County: 27 %Houston County: 25.3 %Howard County: 21.9 %Hudspeth County: 32.5 %Hunt County: 23.6 %Hutchinson County: 24.2 %Irion County: 14.1 %Jack County: 27.2 %Jackson County: 22 %Jasper County: 19.9 %Jeff Davis County: 30.4 %Jefferson County: 25.1 %Jim Hogg County: 25 %Jim Wells County: 25.1 %Johnson County: 22.4 %Jones County: 22.6 %Karnes County: 21.5 %Kaufman County: 21.6 %Kendall County: 17.2 %Kenedy County: 31.9 %Kent County: 18.1 %Kerr County: 25 %Kimble County: 23.9 %King County: 24.1 %Kinney County: 21 %Kleberg County: 23.4 %Knox County: 29.2 %Lamar County: 24.6 %Lamb County: 31 %Lampasas County: 21.8 %La Salle County: 20.4 %Lavaca County: 19.7 %Lee County: 23.8 %Leon County: 28.4 %Liberty County: 26.4 %Limestone County: 25.8 %Lipscomb County: 29.8 %Live Oak County: 23.5 %Llano County: 23.2 %Loving County: 17.6 %Lubbock County: 18.6 %Lynn County: 23.4 %McCulloch County: 23.1 %McLennan County: 21.8 %McMullen County: 15 %Madison County: 24.5 %Marion County: 22 %Martin County: 21.9 %Mason County: 29.5 %Matagorda County: 25.2 %Maverick County: 36.6 %Medina County: 20.9 %Menard County: 31 %Midland County: 18.7 %Milam County: 22.8 %Mills County: 30.4 %Mitchell County: 25.2 %Montague County: 26.4 %Montgomery County: 20.9 %Moore County: 31 %Morris County: 21 %Motley County: 21.7 %Nacogdoches County: 25 %Navarro County: 26.8 %Newton County: 22.5 %Nolan County: 22.4 %Nueces County: 24.6 %Ochiltree County: 32.6 %Oldham County: 16.5 %Orange County: 19.3 %Palo Pinto County: 25.9 %Panola County: 22.6 %Parker County: 20.4 %Parmer County: 32.4 %Pecos County: 28.4 %Polk County: 25.4 %Potter County: 30.7 %Presidio County: 39.7 %Rains County: 24.9 %Randall County: 15.6 %Reagan County: 24.5 %Real County: 27 %Red River County: 22.2 %Reeves County: 26.6 %Refugio County: 20.5 %Roberts County: 14 %Robertson County: 24.4 %Rockwall County: 15.7 %Runnels County: 23.2 %Rusk County: 25.6 %Sabine County: 21.8 %San Augustine County: 22.9 %San Jacinto County: 26.1 %San Patricio County: 21.9 %San Saba County: 32.1 %Schleicher County: 27.2 %Scurry County: 23.4 %Shackelford County: 23.1 %Shelby County: 30.1 %Sherman County: 31.1 %Smith County: 25.8 %Somervell County: 20.3 %Starr County: 39 %Stephens County: 28.5 %Sterling County: 20.4 %Stonewall County: 21.1 %Sutton County: 22.8 %Swisher County: 28.8 %Tarrant County: 22.8 %Taylor County: 21.1 %Terrell County: 21.3 %Terry County: 30.4 %Throckmorton County: 26.3 %Titus County: 28.7 %Tom Green County: 19.7 %Travis County: 17.1 %Trinity County: 24.5 %Tyler County: 20.8 %Upshur County: 24 %Upton County: 22.4 %Uvalde County: 29.5 %Val Verde County: 27.2 %Van Zandt County: 24.9 %Victoria County: 21.7 %Walker County: 22.8 %Waller County: 27.2 %Ward County: 22.2 %Washington County: 21.7 %Webb County: 39.5 %Wharton County: 27.4 %Wheeler County: 28.7 %Wichita County: 21 %Wilbarger County: 25.4 %Willacy County: 29.4 %Williamson County: 14.2 %Wilson County: 18.6 %Winkler County: 24.9 %Wise County: 24 %Wood County: 22.9 %Yoakum County: 26.8 %Young County: 25.6 %Zapata County: 38.4 %Zavala County: 26 %
  • Under 20
  • 20 to 22
  • 22 to 24
  • 24 to 26
  • 26 to 29
  • 29 and over
%, 2018. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2018

Hidalgo County: 42.8 %Hidalgo County42.8Presidio County: 39.7 %Presidio County39.7Webb County: 39.5 %Webb County39.5Starr County: 39 %Starr County39Cameron County: 38.9 %Cameron County38.9Zapata County: 38.4 %Zapata County38.4Gaines County: 37.4 %Gaines County37.4Maverick County: 36.6 %Maverick County36.6Bailey County: 35.8 %Bailey County35.8Castro County: 35.8 %Castro County35.8Dallam County: 35.6 %Dallam County35.6Collingsworth County: 34.6 %Collingsworth County34.6Hall County: 34.2 %Hall County34.2Ochiltree County: 32.6 %Ochiltree County32.6Cochran County: 32.5 %Cochran County32.5Hudspeth County: 32.5 %Hudspeth County32.5Parmer County: 32.4 %Parmer County32.4San Saba County: 32.1 %San Saba County32.1Hansford County: 31.9 %Hansford County31.9Kenedy County: 31.9 %Kenedy County31.9Deaf Smith County: 31.8 %Deaf Smith County31.8Sherman County: 31.1 %Sherman County31.1Lamb County: 31 %Lamb County31Menard County: 31 %Menard County31Moore County: 31 %Moore County31Gonzales County: 30.9 %Gonzales County30.9Potter County: 30.7 %Potter County30.7Jeff Davis County: 30.4 %Jeff Davis County30.4Mills County: 30.4 %Mills County30.4Terry County: 30.4 %Terry County30.4El Paso County: 30.1 %El Paso County30.1Shelby County: 30.1 %Shelby County30.1Haskell County: 29.9 %Haskell County29.9Lipscomb County: 29.8 %Lipscomb County29.8Mason County: 29.5 %Mason County29.5Uvalde County: 29.5 %Uvalde County29.5Willacy County: 29.4 %Willacy County29.4Briscoe County: 29.2 %Briscoe County29.2Knox County: 29.2 %Knox County29.2Gray County: 28.8 %Gray County28.8Hidalgo County: 42.8 %Hidalgo County42.8Presidio County: 39.7 %Presidio County39.7Webb County: 39.5 %Webb County39.5Starr County: 39 %Starr County39Cameron County: 38.9 %Cameron County38.9Zapata County: 38.4 %Zapata County38.4Gaines County: 37.4 %Gaines County37.4Maverick County: 36.6 %Maverick County36.6Bailey County: 35.8 %Bailey County35.8Castro County: 35.8 %Castro County35.8Dallam County: 35.6 %Dallam County35.6Collingsworth County: 34.6 %Collingsworth County34.6Hall County: 34.2 %Hall County34.2Ochiltree County: 32.6 %Ochiltree County32.6Cochran County: 32.5 %Cochran County32.5Hudspeth County: 32.5 %Hudspeth County32.5Parmer County: 32.4 %Parmer County32.4San Saba County: 32.1 %San Saba County32.1Hansford County: 31.9 %Hansford County31.9Kenedy County: 31.9 %Kenedy County31.9Deaf Smith County: 31.8 %Deaf Smith County31.8Sherman County: 31.1 %Sherman County31.1Lamb County: 31 %Lamb County31Menard County: 31 %Menard County31Moore County: 31 %Moore County31Gonzales County: 30.9 %Gonzales County30.9Potter County: 30.7 %Potter County30.7Jeff Davis County: 30.4 %Jeff Davis County30.4Mills County: 30.4 %Mills County30.4Terry County: 30.4 %Terry County30.4El Paso County: 30.1 %El Paso County30.1Shelby County: 30.1 %Shelby County30.1Haskell County: 29.9 %Haskell County29.9Lipscomb County: 29.8 %Lipscomb County29.8Mason County: 29.5 %Mason County29.5Uvalde County: 29.5 %Uvalde County29.5Willacy County: 29.4 %Willacy County29.4Briscoe County: 29.2 %Briscoe County29.2Knox County: 29.2 %Knox County29.2Gray County: 28.8 %Gray County28.8
%. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Full ranking

RankCounties2018 (%)Change on 2017
1Hidalgo County42.8+0.4 pts
2Presidio County39.7+3.1 pts
3Webb County39.5+0.8 pts
4Starr County39-0.6 pts
5Cameron County38.9+0.9 pts
6Zapata County38.4-1.1 pts
7Gaines County37.4-1 pts
8Maverick County36.6+1.4 pts
9Bailey County35.8+1.3 pts
9Castro County35.8+1 pts
11Dallam County35.6+0.7 pts
12Collingsworth County34.6-3 pts
13Hall County34.2+0.9 pts
14Ochiltree County32.6-1.7 pts
15Cochran County32.5-0.6 pts
15Hudspeth County32.5-1.5 pts
17Parmer County32.4-1.6 pts
18San Saba County32.1-1.5 pts
19Hansford County31.9+1.4 pts
19Kenedy County31.9+4.5 pts
21Deaf Smith County31.8-0.4 pts
22Sherman County31.1-0.8 pts
23Lamb County31+0.6 pts
23Menard County31+2.9 pts
23Moore County31-2.6 pts
26Gonzales County30.9+0.5 pts
27Potter County30.7+1.5 pts
28Jeff Davis County30.4+0.2 pts
28Mills County30.4+2.2 pts
28Terry County30.4-0.1 pts
31El Paso County30.1+1 pts
31Shelby County30.10 pts
33Haskell County29.9+0.4 pts
34Lipscomb County29.8-0.7 pts
35Mason County29.5+0.3 pts
35Uvalde County29.5+1.5 pts
37Willacy County29.4+0.5 pts
38Briscoe County29.2-4.5 pts
38Knox County29.2+0.7 pts
40Gray County28.8-0.7 pts
40Hardeman County28.8-1.2 pts
40Swisher County28.8+0.6 pts
43Culberson County28.7-2.5 pts
43Dawson County28.7+2.7 pts
43Titus County28.7-2.2 pts
43Wheeler County28.7+0.8 pts
47Comanche County28.5-0.6 pts
47Stephens County28.5-1.9 pts
49Floyd County28.4-0.7 pts
49Leon County28.4+0.3 pts
49Pecos County28.4+0.9 pts
52Cottle County28.1-2.5 pts
52Dallas County28.1+0.9 pts
52Frio County28.1+0.1 pts
55Coleman County27.9+1.6 pts
56Edwards County27.8-0.2 pts
56Hale County27.8-1.1 pts
56Hemphill County27.8+0.5 pts
59Wharton County27.4+1.9 pts
60Garza County27.2-2.3 pts
60Hill County27.2+2.4 pts
60Jack County27.2-1 pts
60Schleicher County27.2-1.2 pts
60Val Verde County27.2-2.1 pts
60Waller County27.2-1.5 pts
66Aransas County27.1+1.4 pts
66Cherokee County27.1+0.2 pts
66Harris County27.1+0.1 pts
66Hockley County27.1+2 pts
70Burnet County27+2.6 pts
70Hopkins County27+1.2 pts
70Real County27+1.8 pts
73Navarro County26.8-0.5 pts
73Yoakum County26.8-2 pts
75Bosque County26.7+1 pts
76Reeves County26.6-1.1 pts
77Dimmit County26.5+1.5 pts
78Liberty County26.4+0.7 pts
78Montague County26.4-0.7 pts
80Throckmorton County26.3-3.1 pts
81Hamilton County26.2-1.5 pts
81Henderson County26.2+1.2 pts
83San Jacinto County26.1-0.7 pts
84Zavala County26+0.4 pts
85Childress County25.9+1.3 pts
85Palo Pinto County25.9+0.1 pts
87Angelina County25.8-0.4 pts
87Grimes County25.8-1.2 pts
87Limestone County25.8+0.4 pts
87Smith County25.8+1.9 pts
91Ector County25.7-0.2 pts
92Bastrop County25.6-0.5 pts
92Caldwell County25.6-0.5 pts
92Gregg County25.6-0.3 pts
92Hartley County25.6+2.2 pts
92Rusk County25.6+0.7 pts
92Young County25.6-0.7 pts
98Polk County25.4-0.6 pts
98Wilbarger County25.4-0.1 pts
100Duval County25.3-0.2 pts
100Foard County25.3-1.2 pts
100Houston County25.3+1.7 pts
103Camp County25.2-0.8 pts
103Crockett County25.2-0.8 pts
103Matagorda County25.2-1 pts
103Mitchell County25.2+0.2 pts
107Andrews County25.1-1.5 pts
107Jefferson County25.1+0.7 pts
107Jim Wells County25.1-0.1 pts
110Jim Hogg County25-0.1 pts
110Kerr County25-1 pts
110Nacogdoches County25-2.7 pts
113Rains County24.9-1 pts
113Van Zandt County24.9+0.5 pts
113Winkler County24.9-1.7 pts
116Colorado County24.7-1 pts
117Atascosa County24.6+1.4 pts
117Eastland County24.6-1.1 pts
117Lamar County24.6+1.8 pts
117Nueces County24.6+1.5 pts
121Madison County24.5-1.6 pts
121Reagan County24.5-3.7 pts
121Trinity County24.5+0.6 pts
124Robertson County24.4+2.6 pts
125Crosby County24.3-2.5 pts
125Dickens County24.3-2.5 pts
125Falls County24.3-1.5 pts
125Freestone County24.3+1.2 pts
125Gillespie County24.3-2.1 pts
130Cooke County24.2+0.1 pts
130Hutchinson County24.2+0.4 pts
132King County24.1-2.4 pts
133Bandera County24+3.9 pts
133Upshur County24+2.4 pts
133Wise County24-1.3 pts
136Erath County23.9-2.6 pts
136Kimble County23.9-0.9 pts
138Anderson County23.8+0.5 pts
138Lee County23.8-1.6 pts
140Grayson County23.7+0.8 pts
141Crane County23.6-1.3 pts
141Hunt County23.6+1.6 pts
143Live Oak County23.5+0.3 pts
144Blanco County23.4+0.7 pts
144Brooks County23.4+1.3 pts
144Burleson County23.4+0.3 pts
144Fannin County23.4-1.9 pts
144Kleberg County23.4-1 pts
144Lynn County23.4+1 pts
144Scurry County23.4+1.5 pts
151Llano County23.2+0.2 pts
151Runnels County23.2-1.5 pts
153Austin County23.1-0.4 pts
153McCulloch County23.1-1.5 pts
153Shackelford County23.1+0.8 pts
156San Augustine County22.9+1 pts
156Wood County22.9-0.5 pts
158Bee County22.8-0.9 pts
158Milam County22.8-1.3 pts
158Sutton County22.8-2.7 pts
158Tarrant County22.8+1.1 pts
158Walker County22.8+0.8 pts
163Calhoun County22.70 pts
164Jones County22.6-0.2 pts
164Panola County22.6+1 pts
166Brewster County22.5-0.1 pts
166Concho County22.5-0.8 pts
166Newton County22.5+2.2 pts
169Johnson County22.4+0.9 pts
169Nolan County22.4+0.6 pts
169Upton County22.4-3.2 pts
172Donley County22.2-0.7 pts
172Red River County22.2-0.4 pts
172Ward County22.2-3.1 pts
175Callahan County22.1+0.4 pts
176Harrison County22+1.4 pts
176Jackson County22-0.7 pts
176Marion County22+0.4 pts
179Bexar County21.9+1 pts
179Howard County21.9-0.1 pts
179Martin County21.9-3.5 pts
179San Patricio County21.9-1 pts
183Lampasas County21.8-1.4 pts
183McLennan County21.8+0.2 pts
183Sabine County21.8-2.3 pts
186Motley County21.7-2.2 pts
186Victoria County21.70 pts
186Washington County21.7-0.9 pts
189DeWitt County21.6+0.5 pts
189Fisher County21.6-1 pts
189Kaufman County21.6+1.6 pts
192Fayette County21.5-1.5 pts
192Karnes County21.5+0.4 pts
194Ellis County21.4-0.2 pts
195Terrell County21.3-8 pts
196Brown County21.1-1.1 pts
196Stonewall County21.1-2.8 pts
196Taylor County21.1+0.8 pts
199Kinney County21-4.9 pts
199Morris County21+1.1 pts
199Wichita County21-0.2 pts
202Medina County20.9+1.5 pts
202Montgomery County20.9+0.6 pts
204Tyler County20.8+0.6 pts
205Glasscock County20.7-2.4 pts
206Clay County20.6+0.1 pts
207Franklin County20.5-1.5 pts
207Refugio County20.5-1.1 pts
209La Salle County20.4-0.2 pts
209Parker County20.4+3 pts
209Sterling County20.4-3.9 pts
212Galveston County20.3+1.4 pts
212Somervell County20.3-1.2 pts
214Hays County20.2+1 pts
215Delta County19.9-0.7 pts
215Jasper County19.9-0.9 pts
217Hood County19.8-0.1 pts
218Cass County19.7+0.6 pts
218Lavaca County19.7-1.4 pts
218Tom Green County19.7-1.2 pts
221Coke County19.5-2.5 pts
222Orange County19.3+1.1 pts
223Bell County19.2+2.5 pts
223Brazoria County19.2+2.5 pts
225Armstrong County19.1+0.2 pts
226Baylor County18.8-2.8 pts
226Brazos County18.8-0.4 pts
228Midland County18.7-3.8 pts
229Coryell County18.6+0.6 pts
229Lubbock County18.6-0.2 pts
229Wilson County18.6-0.4 pts
232Bowie County18.5-1.6 pts
233Archer County18.4-2.4 pts
234Hardin County18.3+2 pts
235Kent County18.1-0.9 pts
236Chambers County17.7-1.7 pts
237Loving County17.6-5.2 pts
238Comal County17.5+1.1 pts
238Guadalupe County17.5+1 pts
240Goliad County17.4+0.1 pts
241Kendall County17.2+0.7 pts
242Travis County17.1+0.5 pts
243Carson County16.8-2.1 pts
244Oldham County16.5-1 pts
245Fort Bend County15.7-0.4 pts
245Rockwall County15.7-0.1 pts
247Randall County15.60 pts
248Denton County15.2+0.4 pts
249McMullen County15-5 pts
250Collin County14.5+0.5 pts

Showing the top 250 of 254. The Excel download has every row.

Other periods

About this ranking

People aged 18 to 64 without health insurance coverage of any kind, as a percentage of all people aged 18 to 64. United States: Census Bureau Small Area Health Insurance Estimates (SAHIE) for states and counties, all races, both sexes and all income levels.

A model-based single-year estimate that combines the American Community Survey with administrative records and population estimates, so every county gets a figure. Covers states and counties only, because the SAHIE dataset files have no national row. The Census Bureau advises comparing years from 2008 on only; 2013 is the updated release. Working-age adults; the rate for everyone under 65 is uninsured_rate_under_65.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2026). Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties (Counties in Texas by uninsured rate, ages 18 to 64 (US model-based estimate), 2018) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip

MLA 9

Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties, Counties in Texas by uninsured rate, ages 18 to 64 (US model-based estimate), 2018. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/texas-counties?period=2018. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Counties in Texas by uninsured rate, ages 18 to 64 (US model-based estimate), 2018. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/texas-counties?period=2018.

Harvard

U.S. Census Bureau (2026) Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties, Counties in Texas by uninsured rate, ages 18 to 64 (US model-based estimate), 2018 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-18-64/texas-counties?period=2018 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_texas_by_2018,
  author = {{U.S. Census Bureau}},
  title = {{Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties: Counties in Texas by uninsured rate, ages 18 to 64 (US model-based estimate), 2018}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/texas-counties?period=2018. Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties: Counties in Texas by uninsured rate, ages 18 to 64 (US model-based estimate), 2018
PY  - 2026
DA  - 2026/08/06
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-ages-18-64/texas-counties?period=2018
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/texas-counties?period=2018.
N1  - Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip. Retrieved 2026-10-12.
ER  -
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Rank Counties in Texas by uninsured rate, ages 18 to 64 (US model-based estimate) using official data, and cite the source.
rank_places {"indicator":"uninsured_rate_18_64","level":"province","within":"Texas","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=uninsured_rate_18_64&level=province&within=Texas&limit=10

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Questions

Which county has the highest uninsured rate, ages 18 to 64 (US model-based estimate)?

Hidalgo County, with 42.8% in 2018, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, ages 18 to 64 (US model-based estimate)?

Borden County, with 12.2% in 2018.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Uninsured rate, ages 18 to 64 (US model-based estimate): other rankings

Counties in Texas: more rankings