Data / Rankings / Population aged 18 to 64 / US counties

US counties by population aged 18 to 64, 2025

Aleutians East Borough had the highest population aged 18 to 64 of 3144 counties in 2025, at 83.9%. Kalawao County had the lowest, at 30.5%. The median was 56.4% and the figure for the United States was 60%. Source: the U.S. Census Bureau.

Highest83.9Aleutians East Borough
Lowest30.5Kalawao County
Median56.43144 counties
United States60History

Top 40 counties, 2025

Aleutians East Borough: 83.9 %Aleutians East Borough83.9Aleutians West Census Area: 83.5 %Aleutians West Census Area83.5Issaquena County: 75.3 %Issaquena County75.3Radford city: 74.6 %Radford city74.6Williamsburg city: 71.9 %Williamsburg city71.9Madison County: 71.8 %Madison County71.8Riley County: 71.7 %Riley County71.7Crowley County: 71.4 %Crowley County71.4Whitman County: 70.9 %Whitman County70.9Arlington County: 70.6 %Arlington County70.6Montgomery County: 70.4 %Montgomery County70.4Harrisonburg city: 70.4 %Harrisonburg city70.4Watauga County: 70.2 %Watauga County70.2Suffolk County: 70.2 %Suffolk County70.2Clarke County: 70.1 %Clarke County70.1Albany County: 69.8 %Albany County69.8Athens County: 69.6 %Athens County69.6Clay County: 69.6 %Clay County69.6Wheeler County: 69.4 %Wheeler County69.4Walker County: 69.4 %Walker County69.4Lexington city: 69.3 %Lexington city69.3Hudspeth County: 69.2 %Hudspeth County69.2Tompkins County: 69.2 %Tompkins County69.2Story County: 69.1 %Story County69.1Hudson County: 69.1 %Hudson County69.1Oktibbeha County: 69.1 %Oktibbeha County69.1Monongalia County: 69.1 %Monongalia County69.1Denver County: 68.9 %Denver County68.9Travis County: 68.8 %Travis County68.8Concho County: 68.7 %Concho County68.7Monroe County: 68.7 %Monroe County68.7Manassas Park city: 68.7 %Manassas Park city68.7Alexandria city: 68.6 %Alexandria city68.6Charlottesville city: 68.6 %Charlottesville city68.6North Slope Borough: 68.6 %North Slope Borough68.6District of Columbia: 68.5 %District of Columbia68.5New York County: 68.4 %New York County68.4Richmond city: 68.4 %Richmond city68.4Summit County: 68.3 %Summit County68.3Brazos County: 68.2 %Brazos County68.2
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2025 (%)Change on 2024
1Aleutians East Borough83.9+0.1 pts
2Aleutians West Census Area83.5+0.3 pts
3Issaquena County75.3+0.1 pts
4Radford city74.6-0.2 pts
5Williamsburg city71.9-0.5 pts
6Madison County71.8-0.1 pts
7Riley County71.70 pts
8Crowley County71.40 pts
9Whitman County70.9+0.1 pts
10Arlington County70.6-0 pts
11Montgomery County70.4-0 pts
12Harrisonburg city70.4-0.4 pts
13Watauga County70.2+0.1 pts
14Suffolk County70.2-0.3 pts
15Clarke County70.1-0.2 pts
16Albany County69.8-0.1 pts
17Athens County69.60 pts
18Clay County69.6-0.1 pts
19Wheeler County69.4+0.9 pts
20Walker County69.4-0.5 pts
21Lexington city69.3-0.7 pts
22Hudspeth County69.2+0.5 pts
23Tompkins County69.2-0.2 pts
24Story County69.1-0.2 pts
25Hudson County69.10 pts
26Oktibbeha County69.10 pts
27Monongalia County69.1-0.3 pts
28Denver County68.9-0.3 pts
29Travis County68.8-0.1 pts
30Concho County68.7+0.5 pts
31Monroe County68.7+0.1 pts
32Manassas Park city68.7+0.7 pts
33Alexandria city68.6-0.1 pts
34Charlottesville city68.6-0.6 pts
35North Slope Borough68.60 pts
36District of Columbia68.5-0.1 pts
37New York County68.4-0.1 pts
38Richmond city68.4-0.2 pts
39Summit County68.3-0.4 pts
40Brazos County68.2-0.2 pts
41Centre County68.1-0.5 pts
42Chattahoochee County68.1-0.9 pts
43San Francisco County68.1-0.1 pts
44San Juan County68+1.8 pts
45Gunnison County68-0 pts
46Skagway Municipality67.8+2.1 pts
47Bee County67.6-0 pts
48Jones County67.4+0.1 pts
49Gallatin County67.4+0.1 pts
50Payne County67.3-0 pts
51Lincoln County67.3-0.8 pts
52Multnomah County670 pts
53Lafayette County66.8-0.4 pts
54Pulaski County66.7-0.3 pts
55Davidson County66.7-0.2 pts
56Winn Parish66.6+0.9 pts
57Bulloch County66.50 pts
58Douglas County66.5-0.1 pts
59Forest County66.4+0.2 pts
60Champaign County66.4-0.1 pts
61Trousdale County66.4+0.5 pts
62King County66.20 pts
63St. Louis city66.2-0.4 pts
64Tippecanoe County66.1-0.1 pts
65Norfolk city66-0.4 pts
66Gilmer County66-0 pts
67Prince George County66-0.1 pts
68Fulton County66-0.1 pts
69Yolo County65.8+0.2 pts
70San Miguel County65.7+0.1 pts
71Johnson County65.7-0.4 pts
72Brown County65.7-0.5 pts
73Eagle County65.6-0.3 pts
74Mitchell County65.5+0.2 pts
75Fredericksburg city65.4-0.4 pts
76Bent County65.4+0.4 pts
77Benton County65.4-0.1 pts
78Greensville County65.3-0.3 pts
79Alachua County65.3-0.5 pts
80Tuscaloosa County65.3-0.3 pts
81Lee County65.3-0.1 pts
82Coconino County65.2-0.1 pts
83Gratiot County65.2+0.6 pts
84Washtenaw County65.1-0.3 pts
85Orange County65.1-0.1 pts
86Lake County65+0.4 pts
87Santa Clara County65-0 pts
88Durham County64.9-0.2 pts
89Denton County64.9+0.1 pts
90Hampshire County64.9-0.4 pts
91Mecklenburg County64.9-0 pts
92Boone County64.9-0.2 pts
93East Carroll Parish64.90 pts
94Leon County64.9-0.2 pts
94Lincoln Parish64.90 pts
96Boulder County64.9-0.2 pts
97Rowan County64.9+0.1 pts
98Stewart County64.8+0.2 pts
99Calhoun County64.8-0.8 pts
100Coryell County64.8+0.1 pts
101Ingham County64.8+0.1 pts
102Hays County64.7-0.1 pts
103Gilpin County64.6-0.4 pts
104Dane County64.5-0.1 pts
105Washington County64.5-0 pts
106Cass County64.5-0.1 pts
107Isabella County64.4-0.2 pts
108Chittenden County64.4-0.4 pts
109West Feliciana Parish64.3-0.6 pts
110Philadelphia County64.3-0.1 pts
111Charlton County64.2-0.4 pts
112Brookings County64.2-0.3 pts
113Broomfield County64.2-0 pts
114Liberty County64.2+0.4 pts
115Adams County64.1-0 pts
116Anderson County64.1-0.2 pts
116Karnes County64.1+0.2 pts
118Grand Forks County64.1-0.2 pts
119Orange County64.1-0.2 pts
120Adair County64.1-0.1 pts
121Alameda County63.9-0.2 pts
122Blue Earth County63.90 pts
123Union County63.8+0.5 pts
124Salt Lake County63.8+0.2 pts
125Strafford County63.8-0.3 pts
126Teton County63.8-0 pts
127Lynchburg city63.8-0.2 pts
128Los Angeles County63.7-0.2 pts
129Lake County63.7-0.6 pts
130Baltimore city63.7-0.3 pts
131DeKalb County63.7-0.2 pts
132Fairbanks North Star Borough63.60 pts
133Collin County63.6+0.2 pts
134Richland County63.6-0.1 pts
135Wake County63.6-0 pts
136Fayette County63.6-0 pts
137Kings County63.6-0.2 pts
138Madison County63.5+0.1 pts
139Latah County63.5-0.4 pts
140Clayton County63.50 pts
141Prince Edward County63.4-0.4 pts
142Queens County63.4-0.4 pts
143Onslow County63.4-0.3 pts
144Cobb County63.4-0.1 pts
145Cook County63.4-0 pts
146Cleveland County63.3-0 pts
147Grand County63.3-0.1 pts
148Nantucket County63.3-0.4 pts
149Middlesex County63.3-0.3 pts
150Dallas County63.2-0.1 pts
151Greene County63.2-0.5 pts
152Wayne County63.2+0.4 pts
153Washington County63.2-0 pts
154McLean County63.2-0.2 pts
155Essex County63.1-0.1 pts
156Rutherford County63.1-0 pts
157Teton County63.1-0.1 pts
158Chatham County63+0.1 pts
158Franklin County63-0.2 pts
160Pershing County63-0.5 pts
161Providence County63-0.1 pts
162Prince George's County62.9-0.2 pts
163Williamson County62.9+0.1 pts
164Pickens County62.8-0.3 pts
165Hartley County62.80 pts
166Missoula County62.80 pts
167Itawamba County62.8+0.7 pts
168Sunflower County62.8+0.3 pts
169Martin County62.8+0.4 pts
170Larimer County62.8-0.2 pts
171Pike County62.8-0.2 pts
172Osceola County62.8+0.2 pts
173Childress County62.8-0.1 pts
174Pitt County62.8-0.1 pts
175Lumpkin County62.7-0.3 pts
176Jackson County62.7-0.5 pts
177Erath County62.7-0.1 pts
178Gwinnett County62.7-0.1 pts
179Albany County62.7-0.1 pts
180Tattnall County62.7-0.4 pts
181Baldwin County62.7-0.3 pts
182Montgomery County62.70 pts
183Juneau City and Borough62.6-0.1 pts
184San Diego County62.6-0.2 pts
185Jefferson County62.6-0.2 pts
186Hillsborough County62.5-0.1 pts
187Anchorage Municipality62.5-0.3 pts
188Sussex County62.5-0.3 pts
189Madison County62.5-0.1 pts
190Warren County62.5-0 pts
191Miami-Dade County62.5-0.3 pts
192Johnson County62.5+0.2 pts
193Bond County62.5+0.6 pts
194Waller County62.4+0.1 pts
195Orleans Parish62.4-0.3 pts
196Middlesex County62.4-0.2 pts
197Loudoun County62.40 pts
198Hennepin County62.4-0.2 pts
199Kittitas County62.3-0.3 pts
200Forrest County62.3-0.2 pts
201Arapahoe County62.3-0.3 pts
202DeKalb County62.3-0.1 pts
203Morgan County62.3+0.2 pts
204Manassas city62.3-0 pts
205Faulkner County62.3-0.1 pts
206Grant Parish62.3+0.1 pts
207Noble County62.3-0.1 pts
208Douglas County62.30 pts
209Pitkin County62.2-0.3 pts
210Lubbock County62.20 pts
211Fairfax County62.2-0 pts
212Kings County62.20 pts
213Butts County62.2-0.2 pts
214Harris County62.1-0.1 pts
215San Mateo County62.1-0.1 pts
216Eau Claire County62.1-0 pts
217Snohomish County62.1-0.1 pts
218Somerset County62.1+0.1 pts
219Routt County62.1-0.4 pts
220Kenedy County62.1-2.6 pts
221Calloway County62.1+0.1 pts
222Tarrant County62.1-0 pts
223Jackson County62-0.1 pts
224Madison County62-0.1 pts
224Orange County62-0.2 pts
226Paulding County62+0.1 pts
227Rensselaer County62-0.1 pts
228El Paso County62-0.3 pts
229Bexar County620 pts
230Clark County620 pts
231Dooly County61.9-0.4 pts
232Bibb County61.90 pts
233New Hanover County61.9-0 pts
234Bledsoe County61.9+0.1 pts
235Kendall County61.9+0.4 pts
236Mercer County61.9-0.2 pts
237Henry County61.90 pts
238Delaware County61.9-0 pts
239Johnson County61.9-0.5 pts
240Wilcox County61.8-0.2 pts
241Douglas County61.8-0.1 pts
242Newport News city61.8-0.1 pts
243Lassen County61.8-1.2 pts
244Knox County61.8-0.1 pts
245Charleston County61.8-0.2 pts
246Seminole County61.7-0.1 pts
247Dunn County61.7-0.4 pts
248Prince William County61.7-0.1 pts
249Portage County61.7-0.3 pts
250Jack County61.70 pts

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

Other periods

About this ranking

Residents aged 18 to 64 as a percentage of total population on 1 July. United States: Census Bureau county population estimates by age; states and the nation are sums of their counties.

Not comparable with working-age shares for ages 15 to 64 used in EU and World Bank statistics.

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. Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.

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 population aged 18 to 64 using official data, and cite the source.
rank_places {"indicator":"population_18_64_share","level":"province","within":"United States","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=population_18_64_share&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 population aged 18 to 64?

Aleutians East Borough, with 83.9% in 2025, according to the U.S. Census Bureau.

Which county has the lowest population aged 18 to 64?

Kalawao County, with 30.5% in 2025.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. Retrieved 2026-10-12.

Population aged 18 to 64: other rankings

US counties: more rankings