County ZIP codes · Indiana · FIPS 18013
Brown County, IN ZIP Codes
Brown County, Indiana has 10 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 4 of the residential ones lie mainly in Brown County and 6 mainly in a neighboring county; 9 cross the county line. Median household income ranges from $66,906 in 47401 (Bloomington) to $91,337 in 46181 (Trafalgar) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Brown County?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
How different are its ZIP codes?
The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $71,457 and $83,958.
They carry 10 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 10 residential ZIP codes in Brown County
4 ZIP codes lie mainly in Brown County; 6 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 47448 | Nashville | 8,117 | 43 | $73k | $313k | 97% |
| 46160 | Morgantown | 6,514 | 75 | $76k | $242k | 48% |
| 46164 | Nineveh | 3,840 | 145 | $86k | $247k | 86% |
| 47435 | Helmsburg | 137 | 27,400 | – | – | 100% |
Partly in Brown County
| In this county | ||||||
|---|---|---|---|---|---|---|
| 47235 | Freetown | 1,672 | 39 | $74k | $240k | 30% |
| 47468 | Unionville | 1,303 | 43 | $93k | $269k | 23% |
| 47201 | Columbus | 47,900 | 238 | $84k | $229k | 16% |
| 46181 | Trafalgar | 4,964 | 109 | $91k | $314k | 15% |
| 47401 | Bloomington | 40,607 | 491 | $67k | $365k | 3% |
| 47274 | Seymour | 33,068 | 154 | $72k | $189k | 2% |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).
Which ZIP codes cross the county line?
9 ZIP codes of Brown County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Brown | Elsewhere |
|---|---|---|
| 47201 | 16% | Bartholomew County 85% |
| 47401 | 3% | Monroe County 97% |
| 47274 | 2% | Jackson County 88%; Bartholomew County 5%; Jennings County 5% |
| 47448 | 97% | Monroe County 2%; Bartholomew County 1% |
| 46160 | 48% | Morgan County 26%; Johnson County 26% |
| 46181 | 15% | Johnson County 85% |
| 46164 | 86% | Johnson County 14% |
| 47235 | 30% | Jackson County 70% |
| 47468 | 23% | Monroe County 77% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
Which first three digits do Brown County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Brown County's ZIP codes use 3 prefixes: 461, 472 and 474.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 461 | Indianapolis, IN (SCF 460) | 3 | 63 |
| 472 | Indianapolis, IN (SCF 460) | 3 | 38 |
| 474 | Indianapolis, IN (SCF 460) | 4 | 48 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.