Residential delivery area · Ohio
ZIP Code 45146: Martinsville, OH
ZIP code 45146 uses the postal name Martinsville, Ohio and lies entirely in Clinton County (Census 2020 ZIP-county file). About 1,300 people live there (Census Bureau, ACS 2020-2024). Median household income is $71,184 (Census Bureau, ACS 2020-2024). By Census place, 1% of its land lies in Martinsville; 99% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2021
- ZBP2023
- IRS2022
- Town
- Martinsville · its only residential ZIP
- County
- Clinton County
- Census places
- Martinsville
- Micro area
- Wilmington, OH
- House district
- OH-2 119th Congress
- State
- Ohio
- Time zone
- Eastern
- Land area
- 25.9 sq mi · 51 people per sq mi
Where is ZIP code 45146?
45146 centers on 39.314°, -83.804° and covers 25.9 square miles of land plus 0.1 of water. It borders 5 ZIP codes: 45148, 45159, 45142, 45107, 45177.
The map draws ZIP code areas only. For the streets inside 45146, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 45146 compare with the rest of Clinton County?
| Measure | 45146 | In Clinton County | In OH |
|---|---|---|---|
| People (ACS 2020-2024) | 1,324 | 11th of 13 | 877th of 1,233 |
| Median household income | $71k | not ranked | not ranked |
| Median home value | $250k | 3rd of 11 | 197th of 810 |
45146's median household income is not ranked: its 90% margin of error (±$41,071) is more than a quarter of the figure ($71,184). Rankings use ZIP codes of 1,000 or more people living in households, with margins at most 25% of the figure.
It is denser than 43% of U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 45146?
The 2020 Census counted 1,400 people in 45146; the ACS, which samples households over 2020-2024, estimates 1,324. Between the 2010 and 2020 censuses its population fell 11.4% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 1,324±331 (90% margin)
- 2020 Census count
- 1,400−11.4% since 2010 (1,580)
- Households
- 538
- Median age
- 47.6
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 45146?
Of the 1,324 people the ACS estimates in 45146, 19.3% are under 18 and 9.1% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (96.5%).
- Under 1819.3%
- 18 to 6471.6%
- 65 and older9.1%
- White, not Hispanic96.5%
- Other or two or more2.1%
- Hispanic or Latino1.4%
- Black, not Hispanic0.0%
- Asian, not Hispanic0.0%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 45146 earn?
Median household income is $71,184 (ACS 2020-2024). It is not measurably different from 2015-2019 ($76,994 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $71,184±$41,071
- Income per person
- $39,234
- Below the poverty line
- 10.8%
- Unemployed (of the labor force)
- 2.4%
- Adults 25+ with a bachelor's degree
- 13.6%
- Adjusted gross income per tax return, 2022
- $59,160670 returns; wages 77% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 45146?
- Median home value (owners' estimate)
- $250,300
- Median gross rent
- $948
- Homes owned by their occupants
- 81.6%
- Housing units
- 553
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 45146?
5 business establishments had a location in this ZIP code in 2023, 1 fewer than in 2018 (ZIP Code Business Patterns).
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 45146?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 45148 | Midland | 1,592 | $78k | 4.7 mi |
| 45159 | New Vienna | 3,588 | $83k | 6.2 mi |
| 45142 | Lynchburg | 4,187 | $67k | 7.3 mi |
| 45107 | Blanchester | 9,190 | $72k | 9.4 mi |
| 45177 | Wilmington | 22,924 | $74k | 10.4 mi |
| 45132 | Highland | 87 | $35k | 11.1 mi (near) |
| 45113 | Clarksville | 3,877 | $105k | 11.4 mi (near) |
| 45118 | Fayetteville | 3,703 | $98k | 11.5 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.