Allen County Population

1830–2026

405.56K

2026 projection

5% since 2020 (increase)

0100K200K300K400K500K1850190019502000

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Allen County. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
2026405,564+3,2350.80%
2025402,329+3,2350.81%
2024399,094+4,2491.08%
2023394,845+3,0940.79%
2022391,751+2,7280.70%
2021389,023+2,9160.76%
2020386,107+7,1011.87%
2019379,006+3,9301.05%
2018375,076+3,2730.88%
2017371,803+2,2770.62%

Showing 10 of 34 years.

Allen County Demographics

36.2median age

Median age

Female37.1 yrs
Male35.1 yrs

Adults

292,748
61,278 seniors (65+) · 21% of adults231,470 other adults

Sex

Female 50.8% · 199,256Male 49.2% · 193,122

Population by age

MaleFemale85+ years, male: 2,77685+ years, female: 4,40480–84 years, male: 2,52680–84 years, female: 3,55475–79 years, male: 4,57275–79 years, female: 6,49670–74 years, male: 7,62770–74 years, female: 9,29865–69 years, male: 9,66865–69 years, female: 10,35760–64 years, male: 11,01160–64 years, female: 11,40055–59 years, male: 11,12855–59 years, female: 11,72350–54 years, male: 11,48350–54 years, female: 11,45545–49 years, male: 11,22145–49 years, female: 11,24840–44 years, male: 12,64640–44 years, female: 12,71935–39 years, male: 12,07535–39 years, female: 12,58230–34 years, male: 13,54930–34 years, female: 13,87525–29 years, male: 14,09825–29 years, female: 14,04020–24 years, male: 12,67620–24 years, female: 12,95815–19 years, male: 13,77115–19 years, female: 13,11810–14 years, male: 14,87710–14 years, female: 13,8505–9 years, male: 13,8455–9 years, female: 13,3270–4 years, male: 13,5730–4 years, female: 12,85285+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–45K5K10K10K

Hover or tap an age group to see exact counts. Use the up and down arrow keys to inspect age groups.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 3,924 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Allen County Income

$70,737median household income

Median household income

$70,737

Half of households earn more, half earn less

Median earnings

$48,396

Typical yearly pay for a worker 25 or older.

Poverty rate

12.5%

About 1 in 8 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Allen County Marital Status

48% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married48%50%47%
Never married34%36%31%
Divorced12%11%13%
Widowed6%3%8%
Separated1%<1%2%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201

Sources

8 sources, all from the U.S. Census Bureau

Population

American Community Survey, 2024 5-year