ZIP Codes of Sullivan County, IN

Population & People
Population & People
Total Population
20,963
Household Income
Household Income
Median Income
$57,560
Housing
Housing
Total Housing Units
8,935
Business & Economy
Business & Economy
Total Businesses
326
Employment
Employment
Employment Rate
51.87%
Education
Education
Bachelor's Degree+
14.50%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 10 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:10 ZIP Codes (7 Standard, 3 PO Box, 0 Unique) [See All]
Area Codes:812 / 930
Timezone:Eastern (GMT -05:00)
Local Time:2:12:09 PM
Population:20,963 [See All]
FIPS:18153
CBSA:Terre Haute, IN
Land Area:456 sq mi
Water Area:6 sq mi
Coordinates:39.1168, -87.4144
Quick Link:
https://www.zip-codes.com/county/in-sullivan.asp
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Indiana's #69 most populous county
20,963 residents across 10 ZIPs — #69 of 92 Indiana counties.

Standout ZIPs in this County


Most Populous
Sullivan · 8,735 people
41.7% of county total
Highest Income
Fairbanks · $68,000 median
1.2× county average
Largest Land Area
Sullivan · 146.1 sq mi
Spans the most ground
Fastest Growth
Carlisle · 8.0% (10-yr)
3,787 → 4,089 residents
Most Educated
Sullivan · 19.1% bachelor's+
1,169 of 6,110 adults 25+

Things worth knowing about Sullivan County


20,963 residents live across 10 ZIPs covering 456 sq mi, served by 10 distinct USPS-recognized cities.

Population moved from 21,304 to 20,963 from 2014 to 2024 — a -1.6% change. 5 ZIPs gained residents, 4 lost.

The county's wealthiest ZIP 47849 (Fairbanks, $68,000 median) and poorest ZIP 47855 (Hymera, $47,102) are 13.2 miles apart — a 1.4× income gap across local geography.

Median home values vary 2.2× across this county — from $90,500 in 47855 (Hymera) to $198,800 in 47861 (Merom).

Density varies 89× across the county — from 16 people/sq mi in 47849 (Fairbanks) to 1,443 in 47855 (Hymera).

Educational attainment ranges from 1.4% bachelor's+ in 47849 (Fairbanks) to 23.8% in 47861 (Merom) — the breadth of educational profiles across the area.

Within Indiana, this is the #69 most populous of 92 counties and ranks #90 for median household income .

Weighted by population, the typical household earns about $57,612 across the county — reflecting what a typical resident sees, not a simple ZIP average.

14.5% of adults age 25+ hold a bachelor's degree or higher (2,230 of 15,378 reporting).

7 Standard delivery, 3 PO Box only, 0 single-entity Unique ZIPs serve this county.

All ZIP Codes in Sullivan County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
47882SullivanStandard8,735$57,637146.17.9%
47838CarlisleStandard4,089$61,875106.68.0%
47879ShelburnStandard2,640$54,75060.1-23.1%
47850FarmersburgStandard2,104$54,05059.9-12.4%
47848DuggerStandard1,333$60,58115.6-24.1%
47855HymeraPO Box937$47,1020.694.0%
47861MeromStandard727$56,48442.317.3%
47849FairbanksStandard395$68,00024.30.3%
47865PaxtonPO Box30.0-99.1%
47852GraysvillePO Box0.0

Adjacent & Nearby Counties