Data / Rankings / Uninsured rate, ages 35 to 64 (US, ACS) / US counties

US counties by uninsured rate, ages 35 to 64 (US, ACS), 2024

Buffalo County had the highest uninsured rate, ages 35 to 64 (US, ACS) of 3144 counties in 2024, at 50.5%. Loving County had the lowest, at 0%. The median was 10.1% and the figure for the United States was 10.3%. Source: the U.S. Census Bureau.

Highest50.5Buffalo County
Lowest0Loving County
Median10.13144 counties
United States10.3History

Top 40 counties, 2024

Buffalo County: 50.5 %Buffalo County50.5Oglala Lakota County: 47.9 %Oglala Lakota County47.9Yakutat City and Borough: 46.4 %Yakutat City and Borough46.4Presidio County: 42.4 %Presidio County42.4Mellette County: 40.1 %Mellette County40.1Aleutians East Borough: 39.9 %Aleutians East Borough39.9Foard County: 39.2 %Foard County39.2Gaines County: 39 %Gaines County39Todd County: 38.4 %Todd County38.4Hudspeth County: 38.3 %Hudspeth County38.3San Saba County: 38.1 %San Saba County38.1LaGrange County: 38.1 %LaGrange County38.1Starr County: 37.9 %Starr County37.9Zapata County: 37.8 %Zapata County37.8Hidalgo County: 37.7 %Hidalgo County37.7Holmes County: 37.2 %Holmes County37.2Scotland County: 36.1 %Scotland County36.1Cochran County: 35.9 %Cochran County35.9Atkinson County: 35.5 %Atkinson County35.5Coleman County: 35.4 %Coleman County35.4Webb County: 35.3 %Webb County35.3Yukon-Koyukuk Census Area: 35.2 %Yukon-Koyukuk Census Area35.2Hamilton County: 35.1 %Hamilton County35.1Cameron County: 35 %Cameron County35Jim Hogg County: 34.4 %Jim Hogg County34.4Clark County: 34.2 %Clark County34.2Bailey County: 34.1 %Bailey County34.1Briscoe County: 33.7 %Briscoe County33.7Cimarron County: 33.4 %Cimarron County33.4Jackson County: 33.3 %Jackson County33.3Kenedy County: 33.3 %Kenedy County33.3Edwards County: 33.1 %Edwards County33.1Deaf Smith County: 32.9 %Deaf Smith County32.9Castro County: 32.9 %Castro County32.9Wheeler County: 32.9 %Wheeler County32.9Liberty County: 32.4 %Liberty County32.4Willacy County: 32.4 %Willacy County32.4Maverick County: 32.4 %Maverick County32.4Echols County: 31.9 %Echols County31.9Stewart County: 31.7 %Stewart County31.7
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2024 (%)Change on 2023
1Buffalo County50.5-5.4 pts
2Oglala Lakota County47.9-6.6 pts
3Yakutat City and Borough46.4+17.2 pts
4Presidio County42.4+6.8 pts
5Mellette County40.1-5 pts
6Aleutians East Borough39.9+4.7 pts
7Foard County39.2+6.7 pts
8Gaines County39+4.9 pts
9Todd County38.4+1 pts
10Hudspeth County38.3+9.2 pts
11San Saba County38.1+0.7 pts
12LaGrange County38.1+0.8 pts
13Starr County37.9-2.4 pts
14Zapata County37.8-2.2 pts
15Hidalgo County37.7-2.5 pts
16Holmes County37.2+0.3 pts
17Scotland County36.1-1.7 pts
18Cochran County35.9+9.3 pts
19Atkinson County35.5+5.2 pts
20Coleman County35.4-1.9 pts
21Webb County35.3-0.3 pts
22Yukon-Koyukuk Census Area35.2-0.6 pts
23Hamilton County35.1+5 pts
24Cameron County35-1.2 pts
25Jim Hogg County34.4-0 pts
26Clark County34.2-2.6 pts
27Bailey County34.1-0.2 pts
28Briscoe County33.7-4 pts
29Cimarron County33.4+5.3 pts
30Jackson County33.3-0.3 pts
30Kenedy County33.3+33.3 pts
32Edwards County33.1+3.4 pts
33Deaf Smith County32.9+1.6 pts
34Castro County32.9-0.9 pts
35Wheeler County32.9+3.7 pts
36Liberty County32.4-0.1 pts
37Willacy County32.4-3.3 pts
38Maverick County32.4-1.7 pts
39Echols County31.9-0.2 pts
40Stewart County31.7+17.8 pts
41Ziebach County31.7-0 pts
42San Augustine County31.6+3.6 pts
43Moore County31.4+2.8 pts
44Roosevelt County31.2-0.9 pts
45Lake and Peninsula Borough31-0.3 pts
46Duval County30.8+1.9 pts
47Culberson County30.6-13.2 pts
48Crane County30.5-2.7 pts
49Jeff Davis County30.3-6.2 pts
50Collingsworth County30.2-2.5 pts
51Ochiltree County30.2+2 pts
52Brantley County29.9+3.3 pts
53Rolette County29.8-4.8 pts
54Telfair County29.7+11.4 pts
55Newton County29.7-1.7 pts
56Lamb County29.7-1 pts
57Baylor County29.2+3 pts
58Menard County29.1+4.3 pts
59Platte County28.9-1.5 pts
60Big Horn County28.9+4.5 pts
61Swisher County28.6+0.2 pts
62Hale County28.6-3.8 pts
63Glades County28.3+0.2 pts
64Throckmorton County28.1-6.1 pts
65Dewey County28.1-2.3 pts
65Donley County28.1+6.1 pts
65Floyd County28.1-3.6 pts
68Macon County28+1.3 pts
69Camp County27.9+0.9 pts
70Jeff Davis County27.9-1.1 pts
71Upton County27.8+7.3 pts
72Jim Wells County27.8-1.1 pts
73Swain County27.7-0.2 pts
74Dallam County27.7-0.9 pts
75Glacier County27.6-5.6 pts
76Wheeler County27.6-12.2 pts
77Titus County27.6+1.1 pts
78Webster County27.5-6.8 pts
79McIntosh County27.4-3.4 pts
80Marion County27.4-0.2 pts
81Dawson County27.4+0.8 pts
82Terrell County27.3+14.8 pts
83Dixie County27.3-0.3 pts
84Evans County27.2-0.9 pts
85Comanche County27.2+2.2 pts
85Ripley County27.2-1.1 pts
87Colquitt County27.1+0.6 pts
88Terry County27.1+3.9 pts
89Jones County27-1.4 pts
90Hansford County26.9+2.9 pts
91Greene County26.9-4.1 pts
92Shelby County26.9+0.9 pts
93Cherokee County26.8-1.1 pts
94Cottle County26.7+7.2 pts
95Caldwell County26.4-4.1 pts
96Adams County26.4+1.3 pts
96DeSoto County26.4+0.2 pts
98Irwin County26.4-0.6 pts
99Coal County26.4-0.7 pts
100Tyrrell County26.4-1 pts
101Stanton County26.3-1.6 pts
102Hinsdale County26.3-2.3 pts
103McDonald County26.3-1.2 pts
104Hendry County26.1-0.7 pts
105Young County26.1-2.4 pts
106Ware County26.1-0.7 pts
107Calhoun County26-1.8 pts
108El Paso County26-0.1 pts
109Jenkins County25.8-4.2 pts
110Hall County25.8+0.8 pts
111Parmer County25.8+3.2 pts
112Franklin County25.8+0.3 pts
113Brooks County25.7+9.3 pts
114Andrews County25.7+1.6 pts
115Concho County25.6+10.9 pts
116Hardee County25.6+2.1 pts
116Wayne County25.6+1.2 pts
118Jefferson County25.6-0.8 pts
119Dallas County25.5-0.4 pts
120Dimmit County25.5-6.9 pts
121Schleicher County25.4-2.2 pts
122Stevens County25.4-5.1 pts
123Motley County25.3-2.7 pts
124Hill County25.3+0.2 pts
125Golden Valley County25.3+5 pts
126Potter County25.2+0.6 pts
126Rains County25.2+4 pts
128Morgan County25.2-1.4 pts
129Kimball County25.2-4.1 pts
130Palo Pinto County25.2-2.6 pts
131Alleghany County25.1-0.6 pts
132Clinch County25.1+1.3 pts
133Crosby County25-4.4 pts
134Mitchell County24.9-1.5 pts
135Gonzales County24.8+2.3 pts
135Trinity County24.8+0.2 pts
137Ector County24.8+0.7 pts
138Hemphill County24.7-1.6 pts
139Custer County24.7-3.8 pts
140Kinney County24.6+3.1 pts
140Wilkinson County24.6+0.1 pts
142Hopkins County24.6-1.5 pts
143Reeves County24.5-1.8 pts
144Hockley County24.5+0.3 pts
145Stephens County24.4+4 pts
146Jackson County24.4+2.4 pts
147Nacogdoches County24.4+1.6 pts
148Manassas city24.30 pts
148Navarro County24.3-1.7 pts
150Knox County24.3+8.5 pts
151Ben Hill County24.3-1.3 pts
151Lipscomb County24.3+2.9 pts
153Zavala County24.2+6.3 pts
154Marshall County24.2-1.2 pts
155Candler County24.2-3.1 pts
155Kerr County24.20 pts
157Bosque County24.2+0.8 pts
158Jack County24.1+1.9 pts
159San Patricio County24.1+0.5 pts
160Sharkey County24+2 pts
161DeKalb County24+0.9 pts
162Appling County24+0.4 pts
163Manassas Park city23.9-1.7 pts
164San Jacinto County23.9-2.3 pts
165Harris County23.9-0.7 pts
166Crisp County23.9-0.7 pts
167Tyler County23.8-1.1 pts
168Van Zandt County23.8-0.4 pts
169Carter County23.7+0.3 pts
170Noxubee County23.7-2.2 pts
171Llano County23.7+1.7 pts
172Gooding County23.6-2.4 pts
173Sevier County23.6-4.2 pts
174Brooks County23.6+1.8 pts
175Uvalde County23.6-1.1 pts
176Wilcox County23.5+0.6 pts
176Winkler County23.5+4.3 pts
178Sherman County23.5+2.5 pts
179McKinley County23.5-3 pts
180Calhoun County23.4+6.8 pts
181McCulloch County23.4-4 pts
182Bee County23.4+0.9 pts
183Anderson County23.3+0.7 pts
183Grady County23.3-1.8 pts
185King County23.2+12.9 pts
186Wheatland County23.2-0.6 pts
187Angelina County23.1-0.4 pts
188Blaine County23.1+0.2 pts
189Clay County23-1 pts
190Roberts County22.9-1.8 pts
191La Salle County22.9-16.1 pts
191Limestone County22.9-0.9 pts
193Sterling County22.8+3 pts
194Frio County22.8-0.1 pts
195Jackson County22.8+0.7 pts
196Henderson County22.8-0.9 pts
196Tift County22.8-0.3 pts
198Coffee County22.80 pts
199San Juan County22.8-2.8 pts
200Atoka County22.7-0.9 pts
201Sioux County22.7-1.9 pts
202Hoonah-Angoon Census Area22.7-3.5 pts
202Wyandotte County22.7-0.8 pts
204Hidalgo County22.7+3.3 pts
204Nueces County22.7-0 pts
206Leon County22.6+2.7 pts
207Caddo County22.6-2.6 pts
208Cheyenne County22.5-0.1 pts
209Pushmataha County22.5-1.9 pts
210Bacon County22.5+1.8 pts
210Yoakum County22.5+1.2 pts
212Waller County22.4-1.1 pts
213Berrien County22.4-5.5 pts
214Emanuel County22.4-0.9 pts
215Gilmer County22.3-0.5 pts
216Apache County22.3-1.6 pts
217Harmon County22.3-3.8 pts
217Jasper County22.3-1.2 pts
217Ward County22.3+2.7 pts
220Marion County22.2-0 pts
221Hunt County22.2+0.4 pts
221Red River County22.2+1.2 pts
223Le Flore County22.1-0.2 pts
223Turner County22.1+2.2 pts
225Ford County22.1+2.6 pts
225Greene County22.1+0.9 pts
227Wood County22+0.4 pts
228Atascosa County22-0.9 pts
229Gray County22-0.7 pts
230Hyde County22+2.2 pts
231Bastrop County21.9-1.8 pts
232Live Oak County21.9-1.1 pts
233Victoria County21.9+0.8 pts
234Latimer County21.9-1.5 pts
235Hall County21.8+0.3 pts
236Stephens County21.7-0.5 pts
237Lee County21.7+1.1 pts
238Sampson County21.7-0.2 pts
239Bennett County21.6-1.1 pts
240Smith County21.5+0.4 pts
241Big Horn County21.5-1.3 pts
242Highlands County21.5+0.7 pts
243Weston County21.5+1.8 pts
244Jefferson County21.4-2 pts
245Screven County21.4+2.9 pts
245Taney County21.4-1.3 pts
247Okeechobee County21.4-0.3 pts
248Burnet County21.3+1.3 pts
248Whitfield County21.30 pts
250Polk County21.3-1.2 pts

Showing the top 250 of 3144. The Excel download has every row.

Other periods

About this ranking

People aged 35 to 64 without health insurance coverage of any kind, as a percentage of the civilian noninstitutionalized population aged 35 to 64. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

Coverage is what people reported at the interview, so the five-year figure averages five years of answers. People whose only coverage is the Indian Health Service count as uninsured. Active-duty military and people living in institutions are outside the universe. For single-year model-based county figures under 65, see uninsured_rate_under_65, uninsured_rate_18_64 and uninsured_rate_under_19 (SAHIE), a different source.

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. American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat. 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). American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs (US counties by uninsured rate, ages 35 to 64 (US, ACS), 2024) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat

MLA 9

American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs, US counties by uninsured rate, ages 35 to 64 (US, ACS), 2024. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-35-64/us-counties. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs. US counties by uninsured rate, ages 35 to 64 (US, ACS), 2024. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-35-64/us-counties.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs, US counties by uninsured rate, ages 35 to 64 (US, ACS), 2024 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-35-64/us-counties (Accessed: 12 October 2026).

BibTeX
@misc{census_us_counties_by_uninsured_2024,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs: US counties by uninsured rate, ages 35 to 64 (US, ACS), 2024}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-35-64/us-counties. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary\_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs: US counties by uninsured rate, ages 35 to 64 (US, ACS), 2024
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat
L2  - https://invokely.ai/rankings/uninsured-rate-ages-35-64/us-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-35-64/us-counties.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat. Retrieved 2026-10-12.
ER  -
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Questions

Which county has the highest uninsured rate, ages 35 to 64 (US, ACS)?

Buffalo County, with 50.5% in 2024, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, ages 35 to 64 (US, ACS)?

Loving County, with 0% in 2024.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs. Retrieved 2026-10-12.

Uninsured rate, ages 35 to 64 (US, ACS): other rankings

US counties: more rankings