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 2017, at 42.4%. Norfolk County had the lowest, at 2.7%. The median was 12.5%. Source: the U.S. Census Bureau.

Keep it in a collection in your library.
Highest42.4Hidalgo County
Lowest2.7Norfolk County
Median12.53132 counties

Map of counties, 2017

%, 2017. 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, 2017

Hidalgo County: 42.4 %Hidalgo County42.4Starr County: 39.6 %Starr County39.6Zapata County: 39.5 %Zapata County39.5Webb County: 38.7 %Webb County38.7Gaines County: 38.4 %Gaines County38.4Cameron County: 38 %Cameron County38Collingsworth County: 37.6 %Collingsworth County37.6Presidio County: 36.6 %Presidio County36.6Maverick County: 35.2 %Maverick County35.2Dallam County: 34.9 %Dallam County34.9Castro County: 34.8 %Castro County34.8Bailey County: 34.5 %Bailey County34.5Ochiltree County: 34.3 %Ochiltree County34.3Hendry County: 34.1 %Hendry County34.1Hudspeth County: 34 %Hudspeth County34Parmer County: 34 %Parmer County34Echols County: 33.9 %Echols County33.9Briscoe County: 33.7 %Briscoe County33.7Moore County: 33.6 %Moore County33.6San Saba County: 33.6 %San Saba County33.6Hall County: 33.3 %Hall County33.3Cochran County: 33.1 %Cochran County33.1Deaf Smith County: 32.2 %Deaf Smith County32.2Clark County: 32 %Clark County32Sherman County: 31.9 %Sherman County31.9Culberson County: 31.2 %Culberson County31.2Jackson County: 31.1 %Jackson County31.1Titus County: 30.9 %Titus County30.9Northwest Arctic Borough: 30.7 %Northwest Arctic Borough30.7Cottle County: 30.6 %Cottle County30.6Hansford County: 30.5 %Hansford County30.5Lipscomb County: 30.5 %Lipscomb County30.5Terry County: 30.5 %Terry County30.5Gonzales County: 30.4 %Gonzales County30.4Lamb County: 30.4 %Lamb County30.4Stephens County: 30.4 %Stephens County30.4Yukon-Koyukuk Census Area: 30.3 %Yukon-Koyukuk Census Area30.3Colquitt County: 30.2 %Colquitt County30.2Jeff Davis County: 30.2 %Jeff Davis County30.2Shelby County: 30.1 %Shelby County30.1Hidalgo County: 42.4 %Hidalgo County42.4Starr County: 39.6 %Starr County39.6Zapata County: 39.5 %Zapata County39.5Webb County: 38.7 %Webb County38.7Gaines County: 38.4 %Gaines County38.4Cameron County: 38 %Cameron County38Collingsworth County: 37.6 %Collingsworth County37.6Presidio County: 36.6 %Presidio County36.6Maverick County: 35.2 %Maverick County35.2Dallam County: 34.9 %Dallam County34.9Castro County: 34.8 %Castro County34.8Bailey County: 34.5 %Bailey County34.5Ochiltree County: 34.3 %Ochiltree County34.3Hendry County: 34.1 %Hendry County34.1Hudspeth County: 34 %Hudspeth County34Parmer County: 34 %Parmer County34Echols County: 33.9 %Echols County33.9Briscoe County: 33.7 %Briscoe County33.7Moore County: 33.6 %Moore County33.6San Saba County: 33.6 %San Saba County33.6Hall County: 33.3 %Hall County33.3Cochran County: 33.1 %Cochran County33.1Deaf Smith County: 32.2 %Deaf Smith County32.2Clark County: 32 %Clark County32Sherman County: 31.9 %Sherman County31.9Culberson County: 31.2 %Culberson County31.2Jackson County: 31.1 %Jackson County31.1Titus County: 30.9 %Titus County30.9Northwest Arctic Borough: 30.7 %Northwest Arctic Borough30.7Cottle County: 30.6 %Cottle County30.6Hansford County: 30.5 %Hansford County30.5Lipscomb County: 30.5 %Lipscomb County30.5Terry County: 30.5 %Terry County30.5Gonzales County: 30.4 %Gonzales County30.4Lamb County: 30.4 %Lamb County30.4Stephens County: 30.4 %Stephens County30.4Yukon-Koyukuk Census Area: 30.3 %Yukon-Koyukuk Census Area30.3Colquitt County: 30.2 %Colquitt County30.2Jeff Davis County: 30.2 %Jeff Davis County30.2Shelby County: 30.1 %Shelby County30.1
%. 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

RankCounties2017 (%)Change on 2016
1Hidalgo County42.4+1.7 pts
2Starr County39.6-0.1 pts
3Zapata County39.50 pts
4Webb County38.7+1.1 pts
5Gaines County38.4+1.7 pts
6Cameron County38-0.7 pts
7Collingsworth County37.6+2.3 pts
8Presidio County36.60 pts
9Maverick County35.2-0.7 pts
10Dallam County34.9+3.6 pts
11Castro County34.8+0.9 pts
12Bailey County34.5+0.1 pts
13Ochiltree County34.3+2.9 pts
14Hendry County34.1+2.2 pts
15Hudspeth County34-3.4 pts
15Parmer County34+3.5 pts
17Echols County33.9+0.4 pts
18Briscoe County33.7-0.3 pts
19Moore County33.6+1.4 pts
19San Saba County33.6+2.5 pts
21Hall County33.3-2.5 pts
22Cochran County33.1-1.7 pts
23Deaf Smith County32.2+1.9 pts
24Clark County32-1.1 pts
25Sherman County31.9+0.9 pts
26Culberson County31.2+1.6 pts
27Jackson County31.1+3 pts
28Titus County30.9+0.3 pts
29Northwest Arctic Borough30.7-0.6 pts
30Cottle County30.6+0.6 pts
31Hansford County30.5+0.1 pts
31Lipscomb County30.5+4 pts
31Terry County30.5+0.2 pts
34Gonzales County30.4-0.6 pts
34Lamb County30.4+0.6 pts
34Stephens County30.4+3.3 pts
37Yukon-Koyukuk Census Area30.3-3.2 pts
38Colquitt County30.2+1.2 pts
38Jeff Davis County30.2+0.4 pts
40Shelby County30.1+0.1 pts
41Hardeman County30+2.3 pts
42Lake and Peninsula Borough29.9-3.5 pts
43Cherokee County29.8+4 pts
44Adair County29.6+1.4 pts
44Glades County29.6-0.1 pts
46Garza County29.5+2.6 pts
46Gray County29.5+2.2 pts
46Haskell County29.5+3.7 pts
46Owyhee County29.5+0.5 pts
50Throckmorton County29.4+6.6 pts
51Terrell County29.3+5.7 pts
51Val Verde County29.3-0.1 pts
53Aleutians East Borough29.2-5.8 pts
53Mason County29.2+0.8 pts
53Potter County29.20 pts
56Comanche County29.1+0.4 pts
56El Paso County29.1+1.9 pts
56Floyd County29.1+1 pts
59Mellette County29+3.3 pts
60Hale County28.9-0.4 pts
60Willacy County28.9-0.9 pts
62Delaware County28.8+3.3 pts
62Whitfield County28.8+1.8 pts
62Yoakum County28.8+0.4 pts
65Waller County28.7+0.2 pts
66Cimarron County28.6+1.9 pts
66Harmon County28.6+4.2 pts
66Harper County28.6+3.2 pts
69Bennett County28.5+0.1 pts
69Knox County28.5+1.7 pts
71Corson County28.4+2.4 pts
71Schleicher County28.4+2.7 pts
73Jack County28.2+4.1 pts
73Mills County28.2+1.3 pts
73Reagan County28.2+2.2 pts
73Swisher County28.2-0.6 pts
73Ziebach County28.2+3.7 pts
78Leon County28.1+2.5 pts
78Menard County28.1-1.1 pts
80Edwards County28+0.1 pts
80Frio County28+2.5 pts
80Uvalde County28-0.3 pts
83Atkinson County27.9-2.7 pts
83Jerome County27.9+3.6 pts
83Wheeler County27.9+3.4 pts
86DeSoto County27.7-0.5 pts
86Hamilton County27.7+1.3 pts
86Marshall County27.7+1.1 pts
86Nacogdoches County27.7+2.2 pts
86Reeves County27.7+2.4 pts
91Pecos County27.5+1.5 pts
92Buffalo County27.4+1.1 pts
92Kenedy County27.4+2.8 pts
92Nome Census Area27.4-1.1 pts
92Okeechobee County27.4+0.1 pts
96Bethel Census Area27.3-3.9 pts
96Hemphill County27.3+3.9 pts
96Navarro County27.3+0.5 pts
99Dallas County27.2+0.8 pts
100Montague County27.1+2.3 pts
101Grimes County27+2 pts
101Hall County27+1.9 pts
101Harris County27+1.7 pts
104Cherokee County26.9-0.5 pts
104Dewey County26.9+0.9 pts
104Hamilton County26.9+1.7 pts
107Crosby County26.8-0.3 pts
107Dickens County26.8-0.4 pts
107San Jacinto County26.8+1.4 pts
110Andrews County26.6+5 pts
110Scott County26.6+1.5 pts
110Winkler County26.6+3.5 pts
113Collier County26.5+1.3 pts
113Erath County26.5+1.7 pts
113Foard County26.5-0.3 pts
113King County26.5+2.4 pts
113McCurtain County26.5+0.8 pts
118Gillespie County26.4+0.8 pts
119Coleman County26.3+2.2 pts
119Gilmer County26.3-0.9 pts
119Young County26.3+1.5 pts
122Angelina County26.2+1.8 pts
122Matagorda County26.2+1.9 pts
124Bastrop County26.1+0.8 pts
124Caldwell County26.1+0.9 pts
124Gooding County26.1+0.6 pts
124Madison County26.10 pts
124Prince of Wales-Hyder Census Area26.1-1.7 pts
124Texas County26.1-0.8 pts
130Camp County26+0.8 pts
130Crockett County26+1.6 pts
130Dawson County26-0.8 pts
130Kerr County26+2 pts
130Polk County260 pts
135Candler County25.9+0.4 pts
135Ector County25.9+0.7 pts
135Gregg County25.9+2 pts
135Kinney County25.9+1.4 pts
135Rains County25.9+2.1 pts
135Seward County25.9-1.7 pts
141Choctaw County25.8+0.4 pts
141Falls County25.8+2.5 pts
141Gordon County25.8+0.8 pts
141Hardee County25.8-1.6 pts
141Hopkins County25.8+1.3 pts
141Palo Pinto County25.8+0.3 pts
147Aransas County25.7+1.3 pts
147Bosque County25.7-0.2 pts
147Colorado County25.7+3.4 pts
147Eastland County25.7+1.6 pts
147Kusilvak Census Area25.7-6 pts
147Liberty County25.7+0.7 pts
153Hoonah-Angoon Census Area25.6-2.1 pts
153Upton County25.6+1.6 pts
153Zavala County25.6-1.5 pts
156Duval County25.5+1.9 pts
156Scotland County25.5+4.4 pts
156Sutton County25.5+1.3 pts
156Todd County25.5+0.3 pts
156Wharton County25.5-0.3 pts
156Wilbarger County25.5+3 pts
162Grady County25.4+1 pts
162Le Flore County25.4-1.2 pts
162Lee County25.4+4 pts
162Limestone County25.4+0.8 pts
162Martin County25.4+1.3 pts
162Pushmataha County25.4+1.9 pts
168Big Horn County25.3+0.4 pts
168Fannin County25.3+0.6 pts
168Ward County25.3+1.7 pts
168Wise County25.3+5.1 pts
172Haskell County25.2-0.4 pts
172Hayes County25.2+1.8 pts
172Jasper County25.2+2.7 pts
172Jim Wells County25.2+0.7 pts
172Murray County25.2+1 pts
172Real County25.2-2.8 pts
178Glacier County25.1-2.5 pts
178Haskell County25.1+2.5 pts
178Hockley County25.1+0.9 pts
178Jim Hogg County25.1-1.1 pts
182Dimmit County25+1.5 pts
182Henderson County25-0.2 pts
182Mitchell County25+1.2 pts
182Roosevelt County25+1.4 pts
186Caddo County24.9-0.5 pts
186Clayton County24.9+2.8 pts
186Crane County24.9+1.5 pts
186Kemper County24.9+0.9 pts
186Rusk County24.9-0.2 pts
191Coal County24.8+1.8 pts
191Custer County24.8+1.1 pts
191Hill County24.8-1.8 pts
191Kimble County24.8-0.9 pts
195McDonald County24.7-2.4 pts
195Runnels County24.7+1.1 pts
197Childress County24.6+4.6 pts
197McCulloch County24.60 pts
197Nowata County24.6+3 pts
197Rabun County24.6-0.7 pts
197Southeast Fairbanks Census Area24.6+0.3 pts
202Duplin County24.5-0.8 pts
202Hughes County24.5+1.2 pts
202McIntosh County24.50 pts
202Sequoyah County24.5+0.4 pts
206Burnet County24.4+1.4 pts
206Jefferson County24.4-0.1 pts
206Kleberg County24.4-1.6 pts
206Van Zandt County24.4-1.7 pts
210Jefferson County24.3+3.2 pts
210LaGrange County24.3+2 pts
210Miami-Dade County24.3+0.7 pts
210Seminole County24.3+1.2 pts
210Sterling County24.3+3.2 pts
215Coffee County24.2+1.3 pts
215Ottawa County24.2+1.1 pts
215Pittsburg County24.2+4.1 pts
218Cooke County24.1+0.7 pts
218Leake County24.1-0.5 pts
218Milam County24.1+0.8 pts
218Neshoba County24.1+0.8 pts
218Polk County24.1+2.8 pts
218Robeson County24.1-0.2 pts
218Sabine County24.1+2.2 pts
218Tillman County24.1+0.6 pts
226Atoka County24-1.4 pts
226Holmes County24+2.3 pts
226Oglala Lakota County24+1.7 pts
229Motley County23.9-4.4 pts
229Smith County23.9+1.2 pts
229Stonewall County23.9+3.3 pts
229Trinity County23.9-1.3 pts
233Appling County23.8+2 pts
233Hutchinson County23.8+0.9 pts
233Okfuskee County23.8+1 pts
236Bee County23.7+1.2 pts
236Berrien County23.7+2.5 pts
238Avery County23.6+1.9 pts
238Bacon County23.6+0.5 pts
238Houston County23.6+1 pts
238Latimer County23.6+2 pts
238Minidoka County23.6-0.5 pts
243Austin County23.5+1.8 pts
243Bryan County23.5+2.2 pts
243Calhoun County23.5-0.5 pts
243Jeff Davis County23.5-0.9 pts
243Sampson County23.5-0.3 pts
243Taliaferro County23.5+0.8 pts
249Beaver County23.4+1.6 pts
249Brooks County23.4-1 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 2017 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-2017-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), 2017) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2017-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), 2017. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2017-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/us-counties?period=2017. 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), 2017. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2017-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/us-counties?period=2017.

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), 2017 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2017-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-18-64/us-counties?period=2017 (Accessed: 12 October 2026).

BibTeX
@misc{census_us_counties_by_uninsured_2017,
  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), 2017}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2017-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/us-counties?period=2017. 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-2017-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), 2017
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-2017-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-ages-18-64/us-counties?period=2017
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/us-counties?period=2017.
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-2017-csv.zip. Retrieved 2026-10-12.
ER  -
Embed this chart

Paste this code into a web page or a blog post. The chart shows the latest figures as they are published, with the source and a link back to this page.

Sites that read oEmbed links, such as WordPress, can show the chart when you paste the link to this page.

Use this data in your AI agent

Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:

Rank US counties 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":"United States","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=uninsured_rate_18_64&level=province&within=United%20States&limit=10

Connect Claude, ChatGPT or Cursor in one step. The trial answers 25 calls a day without an account.

Questions

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

Hidalgo County, with 42.4% in 2017, 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 2.7% in 2017.

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 2017 and are not ranked.

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

US counties: more rankings