Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

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zipcodes.pro — STATE/OH/COUNTY/BROWN

Brown County, OH ZIP codes

There are 12 ZIP codes in Brown County, OH, in 12 towns, from 45101 to 45275. The largest are 45154 (Mount Orab), 45121 (Georgetown) and 45171 (Sardinia). 1 more crosses into it from a neighbouring county: 45697.

The county seat is Georgetown.

ZIP codes
12
Partly in it
1 more
Towns
12
County seat
Georgetown
County FIPS
39015
State
Ohio
Population
43,845
Median household income
$71,270
Land area
490 sq mi
Area codes
283, 326, 513
Metro area
Cincinnati

Brown County ZIP codes by town

Georgetown (county seat)
45121

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

ZIP codes partly in Brown County

This ZIP code lies mostly in a neighbouring county but covers a twentieth or more of Brown County.

Map of Brown County ZIP codes

451014511545118451194512145130451314515445167451684517145275

The ZIP codes of Brown County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Brown County in numbers

About 43,845 people live in Brown County, in 17,138 households, the 55th most populous of Ohio's 88 counties. The median household income is $71,270 a year, about the same as the Ohio median of $71,389 (US: $80,734). The median owner-occupied home is valued at $196,200 (9% below the Ohio median), and median gross rent is $817 a month. The median age is 42.5; 15.7% of adults 25 and over hold a bachelor's degree or higher (31.5% across Ohio); the average commute takes 34 minutes.

Population43,845Brown43,845
Households17,138Brown17,138
Median age42.5Brown42.5Ohio39.7US 38.9
Median household income$71,270Brown$71,270Ohio$71,389US $80,734
Median home value$196,200Brown$196,200Ohio$214,800US $332,700
Median gross rent$817Brown$817Ohio$1,034US $1,413
Bachelor's degree or higher15.7%Brown15.7%Ohio31.5%US 35.7%
Mean commute33.9 minBrown33.9 minOhio23.4 minUS 26.4 min
Population density90 / sq miBrown90 / sq mi

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.

Largest towns in Brown County

Largest towns in Brown County
TownZIP codesPopulation
Cincinnati 1 311,224
Mount Orab 1 4,987
Georgetown 1 3,899
Ripley 1 1,610
Aberdeen 1 1,517
Sardinia 1 1,138
Hamersville 1 918
Russellville 1 717
Fayetteville 1 324
Higginsport 1 278
Feesburg 1 216
Decatur 1 151

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Neighbouring counties

Counties that share a ZIP code with Brown County.

Not sure you are in Brown County? What county am I in? answers from your location, near a county line included.

Every ZIP code in Brown County, with figures

ZIP codes in Brown County
ZIP City Type Population Median income Median home
45101 Aberdeen , OH Standard 2,035 $40,714 $156,700
45115 Decatur , OH Standard 151 $49,844 —
45118 Fayetteville , OH Standard 3,703 $97,963 $255,800
45119 Feesburg , OH Standard 216 $125,260 —
45121 Georgetown , OH Standard 9,030 $60,188 $164,600
45130 Hamersville , OH Standard 4,206 $83,382 $211,600
45131 Higginsport , OH Standard 278 $53,125 $104,200
45154 Mount Orab , OH Standard 8,969 $74,087 $234,200
45167 Ripley , OH Standard 3,285 $68,750 $167,300
45168 Russellville , OH Standard 1,667 $74,167 $173,100
45171 Sardinia , OH Standard 5,752 $73,838 $182,700
45275 Cincinnati , OH No street area — — —

Cite this page

zipcodes.pro. “Brown County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/oh/county/brown

Underlying data is public domain or openly licensed — sources, vintages and licences.