County ZIP codes · Indiana · FIPS 18115

Ohio County, IN ZIP Codes

Ohio County, Indiana has 5 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 1 of the residential ones lie mainly in Ohio County and 4 mainly in a neighboring county; 5 cross the county line. Median household income ranges from $61,085 in 47018 (Dillsboro) to $75,886 in 47001 (Aurora) (Census Bureau, ACS 2020-2024).

ACS2020-24
Census2020

Where are the ZIP codes of Ohio County?

The residential ZIP codes of Ohio County (whole outlines, including the parts in neighboring counties), shaded by median household income in national fifths (ACS 2020-2024). <$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are its ZIP codes?

47018 · $61k 47001 · $76k

They carry 5 postal town names: Aurora, Rising Sun, Dillsboro, Bennington, Cross Plains.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).

All 5 residential ZIP codes in Ohio County

1 ZIP code lies mainly in Ohio County; 4 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Ohio County, largest first; "In this county" is the share of the ZIP's land in the county
						In this county
47040	Rising Sun	5,275	81	$75k	$199k	68%

Partly in Ohio County

Residential ZIP codes mainly in another county that reach at least 1% into Ohio County, by their share here
						In this county
47018	Dillsboro	4,166	56	$61k	$189k	28%
47001	Aurora	10,696	140	$76k	$200k	21%
47017	Cross Plains	540	26	$95k	$241k	10%
47011	Bennington	1,420	43	$68k	$206k	9%

Download the 5 ZIP codes as CSV

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?

5 ZIP codes of Ohio County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Ohio County and in the neighboring counties
ZIP	In Ohio	Elsewhere
47001	21%	Dearborn County 79%
47040	68%	Switzerland County 32%
47018	28%	Dearborn County 45%; Ripley County 24%; Switzerland County 3%
47011	9%	Switzerland County 91%
47017	10%	Ripley County 74%; Switzerland County 16%

Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).

Which first three digits do Ohio County's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Ohio County starts with 470.

Three-digit prefixes of Ohio County's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Ohio County's
Prefix	Sectional center	Here	All codes
470	Cincinnati, OH (SCF 450)	5	31

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.