What is the largest city in Allen County, IN?

Fort Wayne is the largest city or town in Allen County, with about 268,589 residents.

How many ZIP codes are in Allen County?

Allen County includes 27 ZIP Code Tabulation Areas, including 46704, 46741, 46743, 46745, 46748.

What is the population of Allen County, IN?

About 392,378 people live in Allen County, based on American Community Survey 5-year estimates.

What counties border Allen County?

Allen County borders Noble County, DeKalb County, Defiance County, OH, Huntington County, Adams County, Whitley County, Van Wert County, OH, Wells County, Paulding County, OH.

Allen County, IN: Cities, ZIP Codes & Local Data

Population

392,378

Land area

657sq mi

People per sq mi

597

ZIP codes

27

Allen County at a glance

Allen County is about 3.1 times as dense as Indiana as a whole.
By population, it ranks 3rd among 92 counties in Indiana.
The median household income is $70,737, close to the Indiana median.
A typical owner-occupied home is valued at $214,900 and median rent is $1,021 a month.
Its largest cities are Fort Wayne (268,589), New Haven (15,698) and Huntertown (11,379).

Local data for Allen County, IN

Counts from official public data

Housing and community stats

Allen County, IN, American Community Survey 2020-2024

Full profile

Median household income

$70,737

Poverty rate

12.5%

Median home value

$214,900

Prices +3.6% in a year

Median rent

$1,021/mo

Homeownership

68.9%

Bachelor's or higher

31.6%

Median age

36.2

Average commute

21.9 min

Largest reported origins and ancestries: German Americans (98,120), Irish Americans (36,162), Mexican Americans (24,488).

Home values and rents Income, education and commute

Economy and federal money

Jobs, income, federal spending and pandemic loans

Details

Unemployment rate

3.4%

Sep 2026, 0.0 pts in a year

Average annual pay

$62,828

199,464 jobs, 2025

Income per person

$62,717

BEA, 2024

Federal spending

$2.4B

FY 2026, $6,170 per person

PPP loans

$944M

9,845 loans, 113,989 jobs reported

Campaign donations

$2.3M

Itemized, 2026 cycle

Economy Federal spending PPP loans

How people get to work

Allen County, IN, workers 16 and older. American Community Survey 5-year estimates

Drove alone77.6%
Carpooled9.9%
Public transit0.7%
Walked1.3%
Bicycle0.3%
Taxi, ride-hailing, motorcycle or other1.0%
Worked from home9.2%

Average one-way commute: 21.9 minutes for people who do not work from home.

Environment and hazard risk

Allen County, IN, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Relatively Moderate

Top: strong wind

Storm events since 1996

743

Most often thunderstorm wind

Flood insurance policies

507

0.4% of homes, county

July high / Jan low

84° / 18°F

39.5 inches of rain a year

Hazards, floods and storm history Check a flood zone 39 historic places

Health statistics

Share of adults in Allen County, IN, CDC PLACES estimates

All 40 measures

Obesity

39.4%

U.S. 33.3% +6.1 pts

Diabetes

12.9%

U.S. 12.1% +0.8 pts

Smoking

14.4%

U.S. 12.8% +1.6 pts

Uninsured (18-64)

8.9%

U.S. 11.1% -2.2 pts

Cities, towns and ZIP codes in Allen County

Population shown

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Frequently asked questions

What is the largest city in Allen County, IN?: Fort Wayne is the largest city or town in Allen County, with about 268,589 residents.
How many ZIP codes are in Allen County?: Allen County includes 27 ZIP Code Tabulation Areas, including 46704, 46741, 46743, 46745, 46748.
What is the population of Allen County, IN?: About 392,378 people live in Allen County, based on American Community Survey 5-year estimates.
What counties border Allen County?: Allen County borders Noble County, DeKalb County, Defiance County, OH, Huntington County, Adams County, Whitley County, Van Wert County, OH, Wells County, Paulding County, OH.