Jay County, Indiana
Jay County, Indiana, has 20,118 residents (July 2025 estimate). Its county seat is Portland. It uses Eastern Time and covers 384 sq mi (994 km²) of land.
- Resident population, July 2025
- 20,118
- Land area
- 384 sq mi (994 km²)
- County seat or government
- Portland
- Time zone
- Eastern TimeUTC-05:00 in January; UTC-04:00 in July
- Median household income
- $54,969 ± $3,017
- Median home value
- $117,500 ± $7,058
- Median rent, with utilities
- $770 ± $28
- Homes lived in by their owners
- 79.9% ± 1.9 points
- County type
- County
- Metro or micro area
- Outside any metro or micro areaNext to: Celina, OH micro area, Muncie, IN metro area, Decatur, IN micro area, Greenville, OH micro area, and Fort Wayne, IN metro area
- Water area
- 0.18 sq mi (0.46 km²)
- State
- Indiana
- County code (FIPS)
- 18075
- Coordinates (central point)
- 40.434956, -85.002331
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 Jay County
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| Eastern TimeAmerica/Indiana/Indianapolis | UTC-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
- 4737112,424 people
- 473904,972 people
- 473204,563 people
- 473362,851 people
- 473732,200 people
- 473801,924 people
- 473261,803 people
- 473691,212 people
- 47381218 people
9 ZIP Code areas overlap Jay 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 Jay County, largest first
- Wayne Township7,942 people
- Richland Township3,915 people
- Bearcreek Township1,678 people
- Greene Township1,404 people
- Penn Township1,052 people
- Madison Township929 people
- Jefferson Township803 people
- Pike Township737 people
- Jackson Township535 people
- Noble Township488 people
- Knox Township386 people
- Wabash Township360 people
People counts are American Community Survey 2020–2024 5-year estimates. All townships in Indiana, by county
School districts in Jay County, largest first
- Jay School Corporation20,229 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.
- Portland, Indiana (city)6,416 people
- Dunkirk, Indiana (city)1,861 people
- Redkey, Indiana (town)1,332 people
- Pennville, Indiana (town)619 people
- Bryant, Indiana (town)258 people
- Salamonia, Indiana (town)218 people
Bordering areas, nearest first
Distances are straight lines between map points.
- Blackford County, Indiana17 mi west
- Randolph County, Indiana19 mi south
- Mercer County, Ohio21 mi east
- Adams County, Indiana22 mi north
- Wells County, Indiana24 mi northwest
- Delaware County, Indiana25 mi southwest
- Darke County, Ohio29 mi southeast
Before using this answer on a form
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