Decatur, IN
- ZIP codes
- 7
- CBSA code
19540- Type
- Micropolitan statistical area
- States
- IN
- Population
- 36,227
- Combined area
- Fort Wayne-Huntington-Auburn, IN
Metro areas are defined by the Office of Management and Budget as whole counties, so every ZIP code in a member county is listed here.
Decatur in numbers
About 36,227 people live in the Decatur micropolitan area. The median household income is $65,289 a year (US: $80,734). The median owner-occupied home is valued at $178,400, and median gross rent is $833 a month.
| Population | 36,227 |
|---|---|
| Median household income | $65,289 |
| Median home value | $178,400 |
| Median gross rent | $833 |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.
Its county
| County | ZIP codes | Population | Median income |
|---|---|---|---|
| Adams County, IN | 7 | 36,227 | $65,289 |
ZIP codes in Decatur
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
46711 | Berne , IN | Standard | 8,353 | $70,656 | $173,200 |
46733 | Decatur , IN | Standard | 19,318 | $64,483 | $176,200 |
46740 | Geneva , IN | Standard | 4,486 | $58,484 | $158,900 |
46769 | Linn Grove , IN | No street area | — | — | — |
46772 | Monroe , IN | Standard | 3,288 | $80,000 | $241,600 |
46780 | Pleasant Mills , IN | No street area | — | — | — |
46782 | Preble , IN | No street area | — | — | — |
Cite this page
zipcodes.pro. “Decatur, IN.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/metro/19540-decatur
Underlying data is public domain or openly licensed — sources, vintages and licences.