County ZIP codes · Ohio · FIPS 39015
Brown County, OH ZIP Codes
Brown County, Ohio has 20 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 19 residential and 1 for PO boxes or a single organization. 11 of the residential ones lie mainly in Brown County and 8 mainly in a neighboring county; 14 cross the county line. Median household income ranges from $41,489 in 45144 (Manchester) to $97,963 in 45118 (Fayetteville) (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 $66,844 and $73,838.
They carry 19 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 19 residential ZIP codes in Brown County
11 ZIP codes lie mainly in Brown County; 8 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 45121 | Georgetown | 9,030 | 85 | $60k | $165k | 96% |
| 45154 | Mount Orab | 8,969 | 137 | $74k | $234k | 89% |
| 45171 | Sardinia | 5,752 | 71 | $74k | $183k | 58% |
| 45130 | Hamersville | 4,206 | 111 | $83k | $212k | 83% |
| 45118 | Fayetteville | 3,703 | 91 | $98k | $256k | 87% |
| 45167 | Ripley | 3,285 | 53 | $69k | $167k | 100% |
| 45101 | Aberdeen | 2,035 | 115 | $41k | $157k | 99% |
| 45168 | Russellville | 1,667 | 60 | $74k | $173k | 100% |
| 45131 | Higginsport | 278 | 1,108 | $53k | $104k | 100% |
| 45119 | Feesburg | 216 | 16,615 | $125k | – | 100% |
| 45115 | Decatur | 151 | 33 | $50k | – | 100% |
Partly in Brown County
| In this county | ||||||
|---|---|---|---|---|---|---|
| 45176 | Williamsburg | 10,072 | 190 | $68k | $223k | 36% |
| 45697 | Winchester | 5,222 | 54 | $71k | $206k | 34% |
| 45120 | Felicity | 2,548 | 65 | $50k | $210k | 25% |
| 45106 | Bethel | 11,699 | 159 | $71k | $204k | 21% |
| 45107 | Blanchester | 9,190 | 114 | $72k | $221k | 18% |
| 45144 | Manchester | 4,119 | 58 | $42k | $136k | 9% |
| 45142 | Lynchburg | 4,187 | 68 | $67k | $167k | 7% |
| 45148 | Midland | 1,592 | 66 | $78k | $180k | 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?
14 ZIP codes of Brown County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Brown | Elsewhere |
|---|---|---|
| 45106 | 21% | Clermont County79% |
| 45176 | 36% | Clermont County64% |
| 45107 | 18% | Clinton County52%; Warren County19%; Clermont County11% |
| 45121 | 96% | Clermont County4% |
| 45154 | 89% | Highland County11% |
| 45171 | 58% | Highland County42% |
| 45697 | 34% | Adams County51%; Highland County14% |
| 45130 | 83% | Clermont County17% |
| 45142 | 7% | Highland County76%; Clinton County17% |
| 45144 | 9% | Adams County91% |
| 45118 | 87% | Highland County9%; Clermont County4% |
| 45120 | 25% | Clermont County75% |
| 45101 | 99% | Adams County1% |
| 45148 | 2% | Clinton County98% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
PO Box and single-organization ZIP codes
| ZIP | Postal name |
|---|---|
| 45275 | Cincinnati |
Source: GeoNames postal codes (CC BY 4.0).
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: 451, 452 and 456.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 451 | Cincinnati, OH (SCF 450) | 18 | 49 |
| 452 | Cincinnati, OH (SCF 450) | 1 | 70 |
| 456 | Columbus, OH (SCF 430) | 1 | 69 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.