ZIP code · Decatur · Indiana · United States

ZIP code 46733 — Decatur

ZIP code 46733 serves Decatur, Indiana.

Postal code
46733
Single source Value from one source, not cross-checked.
City
Decatur
County
Adams FIPS 18001
State
Indiana
Country
United States
Coordinates
40.8273, -84.9314 — precision precise (locality)
View on OpenStreetMap
Population
19,246 (ZCTA, ACS 5-year)
Population density
112 / sq mi
Land area
172.4 sq mi (446.6 km²) (ZCTA, ACS 5-year)
Median household income
$63,804
Per-capita income
$31,949
Median age
41.1
Households
7,672
Housing units
8,307
Median home value
$162,500
Median gross rent
$818 / month
Congressional district
IN-3 (119th Congress)
USDA hardiness zone
6a (-10 to -5 °F)
Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
Time zone
America/Indiana/Indianapolis (UTC−5 / UTC−4 DST)
Area code
260
Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.

Climate — monthly normals

Warmest month Jul (avg high 84°F), coldest Jan (avg low 18°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F333648617281848277645038
Avg low °F182029395060636153423324
Precip in2.52.12.84.14.84.64.34.03.02.93.02.6

NOAA 1991–2020 climate normals from the nearest station: DECATUR 1 N (1.4 mi) · NOAA NCEI

Places in ZIP 46733

Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology

About this page

US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.

GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page