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

US counties 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 3132 counties in 2013, at 51.1%. Norfolk County had the lowest, at 3.6%. The median was 20.9%. Source: the U.S. Census Bureau.

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Highest51.1Hidalgo County
Lowest3.6Norfolk County
Median20.93132 counties

Map of counties, 2013

%, 2013. Hatched areas have no value for this period. 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, 2013

Hidalgo County: 51.1 %Hidalgo County51.1Cameron County: 47.4 %Cameron County47.4Webb County: 47.3 %Webb County47.3Starr County: 46.6 %Starr County46.6Clark County: 45.2 %Clark County45.2DeSoto County: 44.9 %DeSoto County44.9Briscoe County: 44.6 %Briscoe County44.6Castro County: 44.4 %Castro County44.4Hall County: 44.2 %Hall County44.2Maverick County: 44 %Maverick County44Zapata County: 44 %Zapata County44Hudspeth County: 43.9 %Hudspeth County43.9Mason County: 43.1 %Mason County43.1Presidio County: 42.3 %Presidio County42.3Aleutians East Borough: 42 %Aleutians East Borough42Kusilvak Census Area: 41.9 %Kusilvak Census Area41.9Collingsworth County: 41.7 %Collingsworth County41.7Yukon-Koyukuk Census Area: 41.6 %Yukon-Koyukuk Census Area41.6Bailey County: 41.5 %Bailey County41.5Hendry County: 41.5 %Hendry County41.5Gaines County: 41.1 %Gaines County41.1Dallam County: 40.7 %Dallam County40.7Atkinson County: 40.4 %Atkinson County40.4Echols County: 40.4 %Echols County40.4Cochran County: 40.1 %Cochran County40.1Edwards County: 40.1 %Edwards County40.1Miami-Dade County: 40 %Miami-Dade County40Menard County: 39.9 %Menard County39.9Cottle County: 39.5 %Cottle County39.5McKinley County: 39.3 %McKinley County39.3Hardee County: 39.1 %Hardee County39.1Sevier County: 39.1 %Sevier County39.1Mills County: 39 %Mills County39Nome Census Area: 39 %Nome Census Area39Yakutat City and Borough: 39 %Yakutat City and Borough39El Paso County: 38.8 %El Paso County38.8Glades County: 38.8 %Glades County38.8Lake and Peninsula Borough: 38.8 %Lake and Peninsula Borough38.8Titus County: 38.5 %Titus County38.5Owyhee County: 38.4 %Owyhee County38.4Hidalgo County: 51.1 %Hidalgo County51.1Cameron County: 47.4 %Cameron County47.4Webb County: 47.3 %Webb County47.3Starr County: 46.6 %Starr County46.6Clark County: 45.2 %Clark County45.2DeSoto County: 44.9 %DeSoto County44.9Briscoe County: 44.6 %Briscoe County44.6Castro County: 44.4 %Castro County44.4Hall County: 44.2 %Hall County44.2Maverick County: 44 %Maverick County44Zapata County: 44 %Zapata County44Hudspeth County: 43.9 %Hudspeth County43.9Mason County: 43.1 %Mason County43.1Presidio County: 42.3 %Presidio County42.3Aleutians East Borough: 42 %Aleutians East Borough42Kusilvak Census Area: 41.9 %Kusilvak Census Area41.9Collingsworth County: 41.7 %Collingsworth County41.7Yukon-Koyukuk Census Area: 41.6 %Yukon-Koyukuk Census Area41.6Bailey County: 41.5 %Bailey County41.5Hendry County: 41.5 %Hendry County41.5Gaines County: 41.1 %Gaines County41.1Dallam County: 40.7 %Dallam County40.7Atkinson County: 40.4 %Atkinson County40.4Echols County: 40.4 %Echols County40.4Cochran County: 40.1 %Cochran County40.1Edwards County: 40.1 %Edwards County40.1Miami-Dade County: 40 %Miami-Dade County40Menard County: 39.9 %Menard County39.9Cottle County: 39.5 %Cottle County39.5McKinley County: 39.3 %McKinley County39.3Hardee County: 39.1 %Hardee County39.1Sevier County: 39.1 %Sevier County39.1Mills County: 39 %Mills County39Nome Census Area: 39 %Nome Census Area39Yakutat City and Borough: 39 %Yakutat City and Borough39El Paso County: 38.8 %El Paso County38.8Glades County: 38.8 %Glades County38.8Lake and Peninsula Borough: 38.8 %Lake and Peninsula Borough38.8Titus County: 38.5 %Titus County38.5Owyhee County: 38.4 %Owyhee County38.4
%. 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

RankCounties2013 (%)Change on 2012
1Hidalgo County51.1-1.2 pts
2Cameron County47.4-1.7 pts
3Webb County47.3-1 pts
4Starr County46.60 pts
5Clark County45.2+5.7 pts
6DeSoto County44.9+5.8 pts
7Briscoe County44.6+1.5 pts
8Castro County44.4+1.1 pts
9Hall County44.2+3 pts
10Maverick County44-0.8 pts
10Zapata County44+0.9 pts
12Hudspeth County43.9-1.6 pts
13Mason County43.1+7.8 pts
14Presidio County42.3-1.4 pts
15Aleutians East Borough42-1.9 pts
16Kusilvak Census Area41.9-1.4 pts
17Collingsworth County41.7+3.5 pts
18Yukon-Koyukuk Census Area41.6-3.2 pts
19Bailey County41.5+2 pts
19Hendry County41.5-0.5 pts
21Gaines County41.1-0.7 pts
22Dallam County40.7+1.4 pts
23Atkinson County40.4+2.1 pts
23Echols County40.4-4.5 pts
25Cochran County40.1+0.6 pts
25Edwards County40.1+2.1 pts
27Miami-Dade County40+0.3 pts
28Menard County39.9+2.6 pts
29Cottle County39.5+0.2 pts
30McKinley County39.3-1.3 pts
31Hardee County39.1+1.2 pts
31Sevier County39.1-0.3 pts
33Mills County39+1.3 pts
33Nome Census Area39+2.4 pts
33Yakutat City and Borough39-1.4 pts
36El Paso County38.8-0.6 pts
36Glades County38.8+2.3 pts
36Lake and Peninsula Borough38.8-1.7 pts
39Titus County38.5+0.8 pts
40Owyhee County38.4+2.8 pts
41San Saba County38.3+4.2 pts
42Northwest Arctic Borough38.2-1.2 pts
43Glacier County38.1+0.2 pts
44Parmer County38-1 pts
45Bethel Census Area37.8-1.1 pts
46Culberson County37.5-4.7 pts
46Hoonah-Angoon Census Area37.5-0.3 pts
48Comanche County37.4+1.1 pts
49Prince of Wales-Hyder Census Area37.3+1 pts
49Terrell County37.3+6.2 pts
51Willacy County37.2-0.5 pts
52Val Verde County37.1+0.6 pts
53Deaf Smith County37-2 pts
54Lamb County36.9+1.8 pts
54Sherman County36.9+0.2 pts
56Gonzales County36.8+0.5 pts
56Hayes County36.8+10.2 pts
58Big Horn County36.7-1.5 pts
59Yakima County36.6+2.1 pts
60Terry County36.4+1.4 pts
61Knox County36-0.9 pts
62Kimble County35.9-1.9 pts
62Moore County35.9-0.7 pts
64Dallas County35.7-0.1 pts
64Throckmorton County35.7-1.2 pts
66Colquitt County35.6+0.4 pts
66Uvalde County35.6-0.1 pts
68Blaine County35.5-3.3 pts
69Erath County35.4-1.1 pts
70Cherokee County35.3+1 pts
70Crosby County35.3+0.8 pts
72Motley County35.2+1.4 pts
72Ochiltree County35.2+0.2 pts
72Okeechobee County35.2-0.9 pts
75Jeff Davis County35.1+2.7 pts
75Luna County35.1+1.2 pts
77Adams County35+2.2 pts
77Cimarron County35+0.2 pts
77Foard County35-1.5 pts
77Jerome County35+0.5 pts
77Palo Pinto County35+3 pts
77Real County35-3.8 pts
83Garfield County34.9-1.2 pts
83Zavala County34.9-1.2 pts
85Dillingham Census Area34.8-1.9 pts
85Floyd County34.8-0.1 pts
87Camp County34.6-0.3 pts
87Dickens County34.6+0.9 pts
87Gooding County34.6+2.3 pts
87Lake County34.6-0.6 pts
91De Baca County34.5+1.6 pts
91Grady County34.5+1 pts
93Collier County34.4+1 pts
93Costilla County34.4+2.2 pts
95Potter County34.3-1.4 pts
95Saguache County34.3-0.5 pts
95Shelby County34.3-1.5 pts
98Jim Hogg County34.2-1.9 pts
98Rabun County34.2+1.2 pts
98Reagan County34.2+0.9 pts
101Swisher County34.1+1.3 pts
102Lincoln County34+1.2 pts
103Sanders County33.9+1 pts
104Donley County33.8+0.8 pts
105Clayton County33.7-0.7 pts
105Jasper County33.7-0.1 pts
105Whitfield County33.7+0.5 pts
108Madison County33.6-1.3 pts
108Roosevelt County33.6-2.6 pts
110Hale County33.5+0.2 pts
110Stephens County33.5-0.1 pts
110Wheatland County33.5+2 pts
113Gilmer County33.4+1.7 pts
113Harris County33.4-0.2 pts
113Highlands County33.4+2.4 pts
113McCone County33.4+4 pts
113Navarro County33.4+0.5 pts
118Waller County33.3+0.8 pts
119Adair County33.2-1.8 pts
120Eastland County33.1+0.4 pts
120Golden Valley County33.1-1.5 pts
120Robertson County33.1+1 pts
123Hopkins County33-0.8 pts
123Pike County33+1.1 pts
125Hamilton County32.90 pts
125Hansford County32.9-0.9 pts
125Lipscomb County32.9+0.4 pts
125Scott County32.90 pts
129Camas County32.8+3.9 pts
129Duplin County32.8-0.2 pts
129Haines Borough32.8-1.7 pts
129Leon County32.8+1.2 pts
129Okanogan County32.8+1.4 pts
129Yoakum County32.8+0.4 pts
135Leake County32.7+1.7 pts
135Nacogdoches County32.7+0.3 pts
137McCulloch County32.6-0.1 pts
138Dawson County32.5-0.7 pts
138Esmeralda County32.5-0.2 pts
140Brooks County32.4-1.3 pts
140Tattnall County32.4+1.7 pts
140Young County32.4+1.3 pts
143Franklin County32.3+0.7 pts
144Doña Ana County32.2+0.6 pts
144Hill County32.2-2.2 pts
144Lafayette County32.2-0.4 pts
144Red River County32.2+1.3 pts
144Robeson County32.2-1.5 pts
144Southeast Fairbanks Census Area32.2-2.3 pts
150Osceola County32.1+1.4 pts
150San Juan County32.1-0.4 pts
152Blaine County32+8.6 pts
152Rains County32+0.2 pts
154Baylor County31.9+4 pts
154Carroll County31.9-1.5 pts
154Coffee County31.9-0.2 pts
154Coleman County31.9-0.8 pts
154Houston County31.9-2.2 pts
154Lynn County31.9+0.2 pts
154Seward County31.9+1 pts
154Teton County31.9+1 pts
162Burleson County31.8+1 pts
162Catron County31.8+2.7 pts
162Le Flore County31.80 pts
165Burnet County31.7-0.4 pts
165Grimes County31.7+0.5 pts
165Liberty County31.7-1 pts
165Long County31.7+1.5 pts
165Texas County31.7-0.5 pts
165Wharton County31.7-0.6 pts
171Gillespie County31.6+0.7 pts
171La Salle County31.6-2.1 pts
171Lee County31.6+1.2 pts
171Macon County31.6+0.9 pts
171Runnels County31.6+1.3 pts
171Yell County31.6-2.6 pts
177Bosque County31.5-0.9 pts
177Cherokee County31.5-2.5 pts
177Henderson County31.5-0.4 pts
177Noxubee County31.5-2.5 pts
177Pushmataha County31.5+0.6 pts
177San Jacinto County31.5-0.7 pts
177Stanton County31.5+3.6 pts
184Bacon County31.4-0.2 pts
184Bastrop County31.4+0.9 pts
184Carter County31.4+1.8 pts
184Crockett County31.4-0.5 pts
184Fremont County31.4+3.9 pts
184Gordon County31.4+0.4 pts
184Jack County31.4+1.3 pts
184Jenkins County31.40 pts
184Pecos County31.4-1.2 pts
184Pondera County31.4-0.2 pts
184Wood County31.4+1.4 pts
195Coal County31.3-0.1 pts
195Kodiak Island Borough31.3-0.7 pts
195Lincoln County31.3+2.3 pts
195Meagher County31.3+0.3 pts
195Polk County31.3-0.4 pts
200Caddo County31.2-2.4 pts
200Winkler County31.2+1.1 pts
202Aransas County31.1+0.6 pts
202Haskell County31.1-0.4 pts
202Hughes County31.1+0.6 pts
202La Paz County31.1+1.1 pts
202Matagorda County31.1-1.5 pts
202Reeves County31.1-2.2 pts
202Van Zandt County31.1-2 pts
209Colusa County31+1.8 pts
209Jones County31-0.6 pts
209Monterey County31+0.6 pts
209Stonewall County31+1.4 pts
209Trinity County31-0.3 pts
214Atoka County30.9-0.8 pts
214Chouteau County30.9-4 pts
214Falls County30.9-0.1 pts
214Grant County30.9+0.7 pts
214LaGrange County30.9-1.1 pts
214Minidoka County30.9+0.6 pts
214Phillips County30.9-2.3 pts
214Searcy County30.9-0.9 pts
214Wheeler County30.9+0.4 pts
223Cassia County30.8+1.1 pts
223Delta County30.8+0.3 pts
223Ector County30.8-1.7 pts
223Howard County30.8+0.3 pts
223Levy County30.8+2.4 pts
223Power County30.8+1.5 pts
223St. Lucie County30.8+1 pts
230Blanco County30.7+1.2 pts
230Bradley County30.7+0.4 pts
230Hunt County30.7+0.5 pts
230Indian River County30.7+1.6 pts
234Caldwell County30.6-0.3 pts
234Colorado County30.6-0.7 pts
234Kinney County30.6+1.8 pts
234Kleberg County30.6-0.6 pts
234Sutton County30.6-0.9 pts
239Baca County30.5+6.2 pts
239Clinch County30.5+3.4 pts
239Franklin Parish30.5-0.3 pts
239Lampasas County30.5+0.4 pts
239Madison County30.5+0.2 pts
239Madison Parish30.5+1.8 pts
239Okfuskee County30.5+1.1 pts
239Polk County30.5-0.1 pts
239San Augustine County30.5+0.8 pts
239Washington County30.5+0.8 pts
249Broward County30.4-0.1 pts
249Hall County30.4+0.4 pts

Showing the top 250 of 3132. 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. 11 counties with data in other periods have no value for 2013 and are left out rather than filled from another source. 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-2013-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 (US counties by uninsured rate, ages 18 to 64 (US model-based estimate), 2013) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2013-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, US counties by uninsured rate, ages 18 to 64 (US model-based estimate), 2013. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2013-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/us-counties?period=2013. 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. US counties by uninsured rate, ages 18 to 64 (US model-based estimate), 2013. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2013-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/us-counties?period=2013.

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, US counties by uninsured rate, ages 18 to 64 (US model-based estimate), 2013 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2013-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-18-64/us-counties?period=2013 (Accessed: 12 October 2026).

BibTeX
@misc{census_us_counties_by_uninsured_2013,
  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: US counties by uninsured rate, ages 18 to 64 (US model-based estimate), 2013}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2013-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/us-counties?period=2013. 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-2013-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: US counties by uninsured rate, ages 18 to 64 (US model-based estimate), 2013
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-2013-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-ages-18-64/us-counties?period=2013
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/us-counties?period=2013.
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-2013-csv.zip. Retrieved 2026-10-12.
ER  -
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Questions

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

Hidalgo County, with 51.1% in 2013, according to the U.S. Census Bureau.

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

Norfolk County, with 3.6% in 2013.

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. 11 counties have no value for 2013 and are not ranked.

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

US counties: more rankings