Data / Rankings / Population aged 65 and over / US counties

US counties by share of population aged 65 and over

Sumter County had the highest share of population aged 65 and over of 3144 counties in 2024, at 57.8%. Chattahoochee County had the lowest, at 6.4%. The median was 21.6% and the figure for the United States was 18.5%. Source: the U.S. Census Bureau.

Highest57.8Sumter County
Lowest6.4Chattahoochee County
Median21.63144 counties
United States18.5History

Top 40 counties, 2024

CSVChart (SVG)

Sumter CountySumter County: 57.8 %57.8Kalawao CountyKalawao County: 48.8 %48.8Catron CountyCatron County: 44.5 %44.5McCormick CountyMcCormick County: 43.7 %43.7Jefferson CountyJefferson County: 43.6 %43.6Jeff Davis CountyJeff Davis County: 42.8 %42.8Charlotte CountyCharlotte County: 40.9 %40.9Lancaster CountyLancaster County: 40.6 %40.6Harding CountyHarding County: 40.4 %40.4Towns CountyTowns County: 39.9 %39.9Curry CountyCurry County: 39.5 %39.5Highland CountyHighland County: 39.3 %39.3Northumberland CountyNorthumberland County: 39.3 %39.3Ontonagon CountyOntonagon County: 38.8 %38.8Hinsdale CountyHinsdale County: 38.6 %38.6Wheeler CountyWheeler County: 38.5 %38.5Sarasota CountySarasota County: 38.4 %38.4Sierra CountySierra County: 38 %38Prairie CountyPrairie County: 37.9 %37.9San Juan CountySan Juan County: 37.8 %37.8Citrus CountyCitrus County: 37.7 %37.7Keweenaw CountyKeweenaw County: 37.6 %37.6Hamilton CountyHamilton County: 37.5 %37.5La Paz CountyLa Paz County: 37.4 %37.4Clay CountyClay County: 37 %37Alcona CountyAlcona County: 36.8 %36.8Llano CountyLlano County: 36.8 %36.8Indian River CountyIndian River County: 36.6 %36.6Mineral CountyMineral County: 36.3 %36.3Yavapai CountyYavapai County: 36.2 %36.2Brunswick CountyBrunswick County: 36.2 %36.2Vilas CountyVilas County: 36.1 %36.1Highlands CountyHighlands County: 36 %36Leelanau CountyLeelanau County: 35.9 %35.9Union CountyUnion County: 35.9 %35.9Iron CountyIron County: 35.7 %35.7Presque Isle CountyPresque Isle County: 35.6 %35.6Douglas CountyDouglas County: 35.5 %35.5Custer CountyCuster County: 35.5 %35.5Boyd CountyBoyd County: 35.5 %35.5
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-09.

Full ranking

RankCounties2024 (%)Change on 2023
1Sumter County57.8+0.3 pts
2Kalawao County48.8+6.1 pts
3Catron County44.5+1.6 pts
4McCormick County43.7+1.5 pts
5Jefferson County43.6+0.7 pts
6Jeff Davis County42.8+1 pts
7Charlotte County40.9+0.2 pts
8Lancaster County40.6+0.7 pts
9Harding County40.4+1.1 pts
10Towns County39.9+1 pts
11Curry County39.5+1.3 pts
12Highland County39.3+1.3 pts
13Northumberland County39.3+1.2 pts
14Ontonagon County38.8+0.3 pts
15Hinsdale County38.6+1.1 pts
16Wheeler County38.5+0.2 pts
17Sarasota County38.4+0.4 pts
18Sierra County38+1.1 pts
19Prairie County37.9+1.4 pts
20San Juan County37.8+1 pts
21Citrus County37.7+0.2 pts
22Keweenaw County37.6+1.1 pts
23Hamilton County37.5+0.5 pts
24La Paz County37.4+1 pts
25Clay County37+1.1 pts
26Alcona County36.8+0.4 pts
27Llano County36.80 pts
28Indian River County36.6+0.7 pts
29Mineral County36.3+0.1 pts
30Yavapai County36.2+0.6 pts
31Brunswick County36.2+0.5 pts
32Vilas County36.1+1 pts
33Highlands County36+0.2 pts
34Leelanau County35.9+1 pts
35Union County35.9+0.6 pts
36Iron County35.7+1.2 pts
37Presque Isle County35.6+0.8 pts
38Douglas County35.5+1 pts
39Custer County35.5+0.8 pts
40Boyd County35.5+0.4 pts
41Barnstable County35.4+0.9 pts
42Roscommon County35.4+0.9 pts
43Door County35.3+0.9 pts
43Petroleum County35.3+1.4 pts
45Huerfano County35.2+1.5 pts
46Custer County35+1.8 pts
47Slope County34.9+3.4 pts
48Fall River County34.9+0.8 pts
49Aitkin County34.8+0.6 pts
50Florence County34.7+1.4 pts
51Clallam County34.6+0.5 pts
52Cumberland County34.5+0.7 pts
53Montmorency County34.5+0.9 pts
54Real County34.5+1.4 pts
55Cook County34.4+1.1 pts
56Ouray County34.4+1.6 pts
57Burnett County34.3+1.2 pts
58Pacific County34.3+0.5 pts
59Pamlico County34.2+0.5 pts
60Sanders County34.1+0.9 pts
61Carroll County34.1+1.1 pts
62Bayfield County34+1.1 pts
63Collier County34+0.4 pts
64Lincoln County33.9+0.8 pts
65Middlesex County33.9+0.5 pts
66Mason County33.9-0.1 pts
67Wahkiakum County33.8+0.7 pts
68Lincoln County33.7+0.7 pts
69Quitman County33.7+0.9 pts
70Mohave County33.7+0.7 pts
71Sierra County33.5+1.5 pts
72Sullivan County33.5+1 pts
73Hickory County33.4+0.5 pts
74Polk County33.4+0.8 pts
75Mathews County33.4+0.3 pts
76Storey County33.4+1.2 pts
77Kent County33.3+1.7 pts
78Plumas County33.3+0.6 pts
79Potter County33.3+0.6 pts
80Gillespie County33.3+0.1 pts
81Nelson County33.2+0.7 pts
82Martin County33.2+0.4 pts
83Mora County33.1+0.9 pts
84McIntosh County33.1+0.9 pts
85Cherokee County33.1+0.5 pts
86Flagler County33+0.3 pts
87Menard County33+0.6 pts
88Sheridan County33+0.9 pts
89Golden Valley County32.9+0.9 pts
90Georgetown County32.9+0.7 pts
91Grant County32.9+0.9 pts
92Garden County32.8+1.5 pts
93Wallowa County32.8+0.6 pts
94Stonewall County32.8-0.1 pts
95Grant County32.7+0.8 pts
96Iron County32.7+1 pts
97Greene County32.7+0.7 pts
98Dundy County32.6+0.7 pts
99Lemhi County32.6+0.8 pts
100Stone County32.6+0.9 pts
101Northampton County32.6+1.2 pts
102Gila County32.3+0.6 pts
103Adams County32.3+1.3 pts
104Custer County32.2+0.9 pts
105Kimble County32.2+1.9 pts
106Iosco County32.1+0.6 pts
107Oscoda County32.1+0.9 pts
108Grant County32+0.3 pts
109Nye County32+0.4 pts
110Baxter County32+0.4 pts
111Mackinac County32+0.2 pts
112Cape May County32+1.2 pts
113Lincoln County31.9+0.7 pts
114Sussex County31.9+0.8 pts
115Fannin County31.9+0.7 pts
116Thomas County31.9+1.3 pts
117Nelson County31.9+0.4 pts
118McPherson County31.8+0.9 pts
119Meagher County31.8+1.8 pts
120Idaho County31.8+0.8 pts
121Pendleton County31.7+0.5 pts
122Kerr County31.7+0.6 pts
123Sabine County31.6+0.7 pts
124Loup County31.6-1.3 pts
125Sawyer County31.5+0.6 pts
126Lincoln County31.5+0.4 pts
127Adams County31.5+0.1 pts
128Oneida County31.5+1 pts
129Benton County31.5+0.4 pts
130Judith Basin County31.4+1.2 pts
131Sedgwick County31.4+0.7 pts
132Jewell County31.40 pts
133Jerauld County31.4+0.6 pts
134Transylvania County31.4+0.2 pts
135Washburn County31.4+1 pts
136Adams County31.4+0.3 pts
137Macon County31.3+0.7 pts
138Niobrara County31.3+0.6 pts
139Schoolcraft County31.2+1 pts
140Talbot County31.2+0.4 pts
141Archuleta County31.2+0.9 pts
142Nuckolls County31.2+1.4 pts
143Price County31.1+0.8 pts
144Blanco County31.1+0.9 pts
145Taos County31.1+0.9 pts
146Pope County310 pts
147Griggs County31+0.9 pts
148Northampton County31+0.7 pts
149Franklin County31+0.4 pts
150Jo Daviess County31+0.8 pts
151Bandera County31+0.8 pts
152Powder River County30.9+1.2 pts
153Alleghany County30.9+0.6 pts
154Lake County30.8+1 pts
155Rabun County30.8+0.7 pts
156Decatur County30.8+0.7 pts
157Columbia County30.8+1 pts
158Hardin County30.8+0.7 pts
159Campbell County30.8+1 pts
160Hot Springs County30.7+0.3 pts
161Deuel County30.7+1.3 pts
162Rock County30.7+0.1 pts
163Mariposa County30.6+0.4 pts
164Aransas County30.6+1 pts
165Marion County30.6+0.8 pts
166Newton County30.5+1 pts
167Kimball County30.5+0.9 pts
168Smith County30.5-0.2 pts
169Mills County30.5+0.2 pts
170Beaufort County30.4+0.5 pts
171Clearwater County30.4+0.6 pts
172Rappahannock County30.4+0.7 pts
173Gogebic County30.4+0.5 pts
174Benzie County30.4+0.7 pts
175Madison County30.3+0.2 pts
176Edwards County30.3+0.9 pts
177Antrim County30.2+0.8 pts
178Calaveras County30.2+0.8 pts
179Wells County30.2+0.1 pts
180Treasure County30.2+1.8 pts
181Dickinson County30.2+0.5 pts
182Jefferson County30.2+0.4 pts
183Cameron County30.2+0.8 pts
184Costilla County30.2+0.6 pts
185Boise County30.2+1.3 pts
186Marion County30.1+0.6 pts
187Coos County30.1+0.4 pts
188Lake of the Woods County30.1+0.8 pts
189Knox County30.1+0.7 pts
190Dukes County30+0.5 pts
191Terrell County30-0.4 pts
192McPherson County29.9+1 pts
193Emmons County29.9+0.7 pts
194Amador County29.9+0.3 pts
195Cheboygan County29.9+0.7 pts
196Tillamook County29.9+0.6 pts
197Camden County29.9+0.7 pts
198Foard County29.9+0.6 pts
198Kent County29.9+0.6 pts
200Nevada County29.9+0.4 pts
201Ferry County29.9-0.2 pts
202Elk County29.8+1.6 pts
203Marion County29.7-0.1 pts
204Carbon County29.7+1.2 pts
205Charles City County29.7+1 pts
206Siskiyou County29.7+0.6 pts
207Colfax County29.6+0.7 pts
207Ravalli County29.6+0.7 pts
209Bath County29.6+0.1 pts
210Island County29.6+0.7 pts
211Graham County29.6+1 pts
212Tuolumne County29.6+0.4 pts
213Murray County29.6+0.6 pts
214Ogemaw County29.6+0.8 pts
215Sweet Grass County29.5+1 pts
216Clay County29.5+1.7 pts
217Worcester County29.5+0.5 pts
218Modoc County29.5+0.4 pts
219Charlevoix County29.5+1 pts
220Alpine County29.5+1.3 pts
221Pickett County29.5+0.8 pts
222Osborne County29.5+1.3 pts
223Josephine County29.4+0.3 pts
224Manistee County29.4+0.6 pts
225Daggett County29.4+0.9 pts
226Patrick County29.4+0.4 pts
227Carteret County29.4+0.6 pts
228Loudon County29.4+0.3 pts
229Esmeralda County29.4+0.1 pts
230Essex County29.4+0.5 pts
231Keya Paha County29.3+0.4 pts
232Baker County29.3+0.4 pts
233Rawlins County29.3+0.6 pts
234Rush County29.3+0.9 pts
235Washington County29.3+0.4 pts
236Gilliam County29.3+0.9 pts
237Ashe County29.3+0.5 pts
238Arenac County29.2+1 pts
239Perquimans County29.2+0.6 pts
240Hooker County29.2-1.8 pts
241Cleburne County29.2+0.6 pts
242Perkins County29.2+1.1 pts
243Horry County29.2+0.6 pts
244Lee County29.2+0.1 pts
245Delta County29.2+0.1 pts
246Pawnee County29.2+0.2 pts
247Trinity County29.2+1 pts
248Piscataquis County29.1+0.5 pts
249Santa Fe County29.1+0.5 pts
250Henderson County29.1+0.8 pts

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

Other periods

About this ranking

Residents aged 65 or over as a percentage of total population. Spain: 1 January, INE annual census. United States: 1 July, Census Bureau population estimates. World Bank figures for other countries and the World refer to mid-year.

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 (cc-est agesex): residents aged 65 and over as a percentage of the total, 1 July; states and the nation summed from counties. https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/counties/asrh/cc-est2025-agesex-all.csv. Retrieved 2026-10-09.

Use this data in your AI agent

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Rank US counties by share of population aged 65 and over using official data, and cite the source.
rank_places {"indicator":"population_65_plus_share","level":"province","within":"United States","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=population_65_plus_share&level=province&within=United%20States&limit=10

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Questions

Which county has the highest share of population aged 65 and over?

Sumter County, with 57.8% in 2024, according to the U.S. Census Bureau.

Which county has the lowest share of population aged 65 and over?

Chattahoochee County, with 6.4% 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, Population Estimates Program, county population by age and sex (cc-est agesex): residents aged 65 and over as a percentage of the total, 1 July; states and the nation summed from counties. Retrieved 2026-10-09.

Population aged 65 and over: other rankings

US counties: more rankings