What city is ZIP code 45146?

ZIP code 45146 is in Martinsville, OH (Clinton County).

What county is ZIP code 45146 in?

ZIP code 45146 is mostly in Clinton County, Ohio.

How many people live in ZIP code 45146?

About 1,324 people live in the 45146 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.

Checked Oct 26, 2026

ZIP Code 45146

Martinsville, OH, Clinton County

Population

1,324

Land area

25.9sq mi

People per sq mi

City

Martinsville

ZIP 45146 and nearby ZIP codes

Full map

ZIP 45146 at a glance

ZIP 45146 (Martinsville) is 82% less dense than Ohio as a whole.
The median household income is $71,184, close to the Ohio median.
A typical owner-occupied home is valued at $250,300 (17% above Ohio) and median rent is $948 a month.

Local data for ZIP 45146

Counts from official public data

Post Offices1

Housing and community stats

ZIP 45146, American Community Survey 2020-2024

Full profile

Median household income

$71,184

Poverty rate

10.8%

Median home value

$250,300

Prices -4.7% in a year

Median rent

$948/mo

Homeownership

81.6%

Bachelor's or higher

13.6%

Median age

47.6

Average commute

37.2 min

Income, education and commute

Economy and federal money

Businesses, pandemic loans and political donations

Details

Business establishments

ZIP Business Patterns 2023

Employees

$576K annual payroll

PPP loans

$476K

26 loans

Campaign donations

$1,216

47% D, 25% R, 2026 cycle

PPP loans in this ZIP

Environment and hazard risk

ZIP 45146, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Very Low

Top: ice storm

Storm events since 1996

685

Countywide, mostly thunderstorm wind

Flood insurance policies

0.4% of homes, county

July high / Jan low

84° / 21°F

42.4 inches of rain a year

Hazards, floods and storm history Check a flood zone

Health statistics

Share of adults in ZIP 45146, CDC PLACES estimates

All 40 measures

Obesity

40.0%

U.S. 33.3% +6.7 pts

Diabetes

13.5%

U.S. 12.1% +1.4 pts

Smoking

18.4%

U.S. 12.8% +5.6 pts

Uninsured (18-64)

7.6%

U.S. 11.1% -3.5 pts

Frequently asked questions

What city is ZIP code 45146?: ZIP code 45146 is in Martinsville, OH (Clinton County).
What county is ZIP code 45146 in?: ZIP code 45146 is mostly in Clinton County, Ohio.
How many people live in ZIP code 45146?: About 1,324 people live in the 45146 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.

Source: U.S. Census Bureau (ZIP Code Tabulation Areas, American Community Survey) · Data as of 12/31/2023. ZIP Code Tabulation Areas closely match, but are not identical to, USPS ZIP code delivery areas.