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Where am ILOCATED

Sullivan County, Indiana

Sullivan County, Indiana, has 20,831 residents (July 2025 estimate). Its county seat is Sullivan. It uses Eastern Time and covers 447 sq mi (1,158 km²) of land.

IndianapolisFort WayneEvansville
Sullivan County in Indiana
Crawford CountySullivanShelburnFarmersburgHymeraDugger
Sullivan County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
20,831
Land area
447 sq mi (1,158 km²)
County seat or government
Sullivan
Time zone
Eastern TimeUTC-05:00 in January; UTC-04:00 in July
Median household income
$56,204 ± $4,192
Median home value
$131,100 ± $10,580
Median rent, with utilities
$829 ± $38
Homes lived in by their owners
76.4% ± 2.8 points
County type
County
Metro or micro area
Terre Haute, IN metro areaOutlying county
Water area
6.92 sq mi (17.9 km²)
State
Indiana
County code (FIPS)
18153
Coordinates (central point)
39.089225, -87.415843
Open this point in the location finder

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 Sullivan County

Time zoneLocal time and UTC offsetNext clock change
Eastern TimeAmerica/Indiana/IndianapolisUTC-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. 478828,735 people
  2. 474384,180 people
  3. 478384,089 people
  4. 478792,640 people
  5. 478502,104 people
  6. 475611,442 people
  7. 478481,333 people
  8. 47858946 people
  9. 47855937 people
  10. 47866733 people
  11. 47861727 people
  12. 47849395 people
All 13
  1. 478653 people

13 ZIP Code areas overlap Sullivan 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 Sullivan County, largest first

  1. Hamilton Township7,107 people
  2. Haddon Township3,739 people
  3. Curry Township3,402 people
  4. Cass Township1,878 people
  5. Jackson Township1,770 people
  6. Gill Township1,269 people
  7. Turman Township750 people
  8. Fairbanks Township532 people
  9. Jefferson Township333 people

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

School districts in Sullivan County, largest first

  1. Southwest School Corporation12,865 people
  2. Northeast School Corporation7,915 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. Sullivan, Indiana (city)4,252 people
  2. Shelburn, Indiana (town)1,264 people
  3. Farmersburg, Indiana (town)1,166 people
  4. Hymera, Indiana (town)937 people
  5. Dugger, Indiana (town)783 people
  6. Carlisle, Indiana (town)726 people
  7. Lewis, Indiana (CDP)560 people
  8. Merom, Indiana (town)285 people
  9. New Lebanon, Indiana (CDP)281 people
  10. Paxton, Indiana (CDP)269 people
  11. Fairbanks, Indiana (CDP)147 people
  12. Pleasantville, Indiana (CDP)127 people
All 14
  1. Graysville, Indiana (CDP)67 people
  2. Cass, Indiana (CDP)65 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Crawford County, Illinois19 mi west
  2. Greene County, Indiana22 mi east
  3. Vigo County, Indiana24 mi north
  4. Clark County, Illinois26 mi northwest
  5. Clay County, Indiana26 mi northeast
  6. Knox County, Indiana28 mi south

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.