ZIP Codes of Jefferson County, IN

Population & People
Population & People
Total Population
32,393
Household Income
Household Income
Median Income
$62,232
Housing
Housing
Total Housing Units
14,094
Business & Economy
Business & Economy
Total Businesses
671
Employment
Employment
Employment Rate
55.13%
Education
Education
Bachelor's Degree+
20.02%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 5 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:5 ZIP Codes (5 Standard, 0 PO Box, 0 Unique) [See All]
Area Codes:812 / 930
Timezone:Eastern (GMT -05:00)
Local Time:2:12:07 PM
Population:32,393 [See All]
FIPS:18077
CBSA:Madison, IN
Land Area:376 sq mi
Water Area:2 sq mi
Coordinates:38.8219, -85.4282
Quick Link:
https://www.zip-codes.com/county/in-jefferson.asp
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Indiana's #52 most populous county
32,393 residents across 5 ZIPs — #52 of 92 Indiana counties.

Standout ZIPs in this County


Most Populous
Madison · 22,884 people
70.6% of county total
Highest Income
Deputy · $80,729 median
1.3× county average
Largest Land Area
Madison · 231.5 sq mi
Spans the most ground
Fastest Growth
Deputy · 16.6% (10-yr)
1,789 → 2,086 residents
Most Educated
Madison · 21.0% bachelor's+
3,470 of 16,494 adults 25+

Things worth knowing about Jefferson County


32,393 residents live across 5 ZIPs covering 376 sq mi, served by 5 distinct USPS-recognized cities.

Population moved from 31,390 to 32,393 from 2014 to 2024 — a +3.2% change. 3 ZIPs gained residents, 2 lost.

The county's wealthiest ZIP 47230 (Deputy, $80,729 median) and poorest ZIP 47231 (Dupont, $42,332) are 9.6 miles apart — a 1.9× income gap across local geography.

Median home values vary 2.3× across this county — from $105,900 in 47231 (Dupont) to $238,400 in 47230 (Deputy).

Density varies 10× across the county — from 18 people/sq mi in 47231 (Dupont) to 185 in 47243 (Hanover).

Educational attainment ranges from 4.9% bachelor's+ in 47231 (Dupont) to 21.0% in 47250 (Madison) — the breadth of educational profiles across the area.

Within Indiana, this is the #52 most populous of 92 counties and ranks #81 for median household income .

Weighted by population, the typical household earns about $62,899 across the county — reflecting what a typical resident sees, not a simple ZIP average.

20.0% of adults age 25+ hold a bachelor's degree or higher (4,476 of 22,354 reporting).

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

Stories about Jefferson County


Single-ZIP anchor

One ZIP holds the majority of this county's population — a sign of a county built around a single city or town.

Madison

All ZIP Codes in Jefferson County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
47250MadisonStandard22,884$61,284231.54.6%
47243HanoverStandard6,225$65,19733.73.6%
47230DeputyStandard2,086$80,72949.816.6%
47231DupontStandard675$42,33237.4-33.7%
47224CanaanStandard523$61,61823.9-24.0%

Adjacent & Nearby Counties