Allen County, Ohio

Allen County, Ohio, has 100,881 residents (July 2025 estimate). Its county seat is Lima. It uses Eastern Time and covers 403 sq mi (1,043 km²) of land.

ColumbusClevelandCincinnati
Allen County in Ohio
LimaDelphosFort ShawneeBlufftonElida
Allen County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
100,881
Land area
403 sq mi (1,043 km²)
County seat or government
Lima
Time zone
Eastern TimeUTC-05:00 in January; UTC-04:00 in July
Median household income
$64,038 ± $1,778
Median home value
$165,300 ± $3,928
Median rent, with utilities
$922 ± $24
Homes lived in by their owners
67.7% ± 1.6 points
County type
County
Metro or micro area
Lima, OH metro areaCentral county
Water area
4.31 sq mi (11.2 km²)
State
Ohio
County code (FIPS)
39003
Coordinates (central point)
40.771627, -84.106103

These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.

Time zones in Allen County

Time zoneLocal time and UTC offsetNext clock change
Eastern TimeAmerica/New_YorkUTC-05:00 in January; UTC-04:00 in July. Enable JavaScript for the live clock.Enable JavaScript for upcoming changes.

Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.

ZIP Code areas, largest first

  1. 4580524,387 people
  2. 4580121,739 people
  3. 4589517,998 people
  4. 4580413,608 people
  5. 4580711,774 people
  6. 4580610,974 people
  7. 4583310,919 people
  8. 458107,449 people
  9. 458175,926 people
  10. 458305,199 people
  11. 458874,422 people
  12. 458503,559 people
All 20
  1. 458443,059 people
  2. 458772,562 people
  3. 458122,027 people
  4. 458961,833 people
  5. 45820581 people
  6. 45808350 people
  7. 45854293 people
  8. 4580945 people

20 ZIP Code areas overlap Allen County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.

Official county information

We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.

Townships in Allen County, largest first

  1. American Township14,492 people
  2. Shawnee Township12,488 people
  3. Bath Township9,302 people
  4. Marion Township6,676 people
  5. Richland Township5,830 people
  6. Perry Township3,349 people
  7. Jackson Township3,096 people
  8. Spencer Township3,015 people
  9. Auglaize Township2,793 people
  10. Monroe Township2,122 people
  11. Amanda Township1,843 people
  12. Sugar Creek Township1,332 people

People counts are American Community Survey 2020–2024 5-year estimates. All townships in Ohio, by county

School districts in Allen County, largest first

  1. Lima City School District27,353 people
  2. Elida Local School District18,857 people
  3. Shawnee Local School District17,666 people
  4. Bath Local School District11,943 people
  5. Delphos City School District9,933 people
  6. Bluffton Exempted Village School District6,309 people
  7. Allen East Local School District5,882 people
  8. Spencerville Local School District4,819 people
  9. Columbus Grove Local School District4,247 people
  10. Perry Local School District (Allen County)3,749 people
  11. Pandora-Gilboa Local School District3,365 people
  12. Waynesfield-Goshen Local School District3,025 people

Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.

Cities, towns and communities, largest first

These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.

  1. Lima, Ohio (city)35,010 people
  2. Delphos, Ohio (city)7,143 people
  3. Fort Shawnee, Ohio (CDP)6,209 people
  4. Bluffton, Ohio (village)3,859 people
  5. Elida, Ohio (village)2,163 people
  6. Spencerville, Ohio (village)2,107 people
  7. Cairo, Ohio (village)581 people
  8. Westminster, Ohio (CDP)526 people
  9. Harrod, Ohio (village)453 people
  10. Beaverdam, Ohio (village)404 people
  11. Lafayette, Ohio (village)293 people
  12. Gomer, Ohio (CDP)148 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Auglaize County, Ohio16 mi southwest
  2. Putnam County, Ohio18 mi north
  3. Hardin County, Ohio24 mi east
  4. Van Wert County, Ohio26 mi west
  5. Hancock County, Ohio28 mi northeast

Before using this answer on a form

Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.

Find the county where you are now, check its ZIP area, or check the time zone where you are.

See this county on Census.gov ↗

Areas that only touch the edge

These areas meet the boundary only along a sliver. Most addresses here are not in them; for an address near the line, check with the county.