Residential delivery area · Ohio
ZIP Code 45066: Springboro, OH
ZIP code 45066 uses the postal name Springboro, Ohio and lies mostly in Warren County (99% of its land) with the rest in Montgomery County (Census 2020 ZIP-county file). About 28,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $131,250 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Springboro (42%) and Five Points (10%); 48% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Springboro · its only residential ZIP
- County
- Warren County (99%); Montgomery County (1%)
- Census places
- Springboro (42%); Five Points (10%) census-designated place
- Metro area
- Cincinnati, OH-KY-IN
- House districts
- OH-1 (99%), OH-10 (1%) 119th Congress, by share of land
- State
- Ohio
- Time zone
- Eastern
- Land area
- 20.4 sq mi · 1,350 people per sq mi
Where is ZIP code 45066?
45066 centers on 39.548°, -84.218° and covers 20.4 square miles of land plus 0.0 of water. It borders 5 ZIP codes: 45005, 45458, 45342, 45036, 45068.
The map draws ZIP code areas only. For the streets inside 45066, 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 45066 compare with the rest of Warren County?
| Measure | 45066 | In Warren County | In OH |
|---|---|---|---|
| People (ACS 2020-2024) | 27,545 | 9th of 21 | 128th of 1,233 |
| Median household income | $131k | 2nd of 17 | 25th of 755 |
| Median home value | $394k | 3rd of 18 | 37th of 810 |
Its median household income is higher than in 93% of U.S. residential ZIP codes, and it is denser than 81% of all 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 45066?
The 2020 Census counted 26,399 people in 45066; the ACS, which samples households over 2020-2024, estimates 27,545. Between the 2010 and 2020 censuses its population grew 10.7% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 27,545
- 2020 Census count
- 26,399+10.7% since 2010 (23,839)
- Households
- 9,708
- Median age
- 38.7
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 45066?
Of the 27,545 people the ACS estimates in 45066, 27.7% are under 18 and 16.1% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (84.5%).
- Under 1827.7%
- 18 to 6456.1%
- 65 and older16.1%
- White, not Hispanic84.5%
- Other or two or more6.0%
- Hispanic or Latino3.7%
- Asian, not Hispanic3.4%
- Black, not Hispanic2.4%
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 45066 earn?
Median household income is $131,250 (ACS 2020-2024), the 2nd highest of the 17 ranked ZIP codes in Warren County. It is not measurably different from 2015-2019 ($139,081 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $131,250±$14,818
- Income per person
- $57,006
- Below the poverty line
- 2.3%
- Unemployed (of the labor force)
- 2.4%
- Adults 25+ with a bachelor's degree
- 55.7%
- Adjusted gross income per tax return, 2022
- $126,36112,780 returns; wages 68% 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 45066?
FHFA's house price index for 45066, built from repeat sales and appraisals of the same homes, rose 94% from 2015 to 2025 and rose 55% from 2020 to 2025, and moved +3.5% in 2025.
- Median home value (owners' estimate)
- $393,500
- Median gross rent
- $1,243
- Homes owned by their occupants
- 91.2%
- Housing units
- 9,953
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 45066?
599 business establishments had a location in this ZIP code in 2023, 25 more than in 2018; the most are in health care and social assistance (ZIP Code Business Patterns).
- Health care and social assistance88
- Other services (except public administration)69
- Professional, scientific, and technical services63
- Accommodation and food services53
- Retail trade48
- Finance and insurance47
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 45066?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 45005 | Franklin | 32,251 | $75k | 4.1 mi |
| 45458 | Dayton | 38,712 | $110k | 5.0 mi |
| 45342 | Miamisburg | 36,152 | $85k | 6.4 mi |
| 45036 | Lebanon | 42,204 | $99k | 7.2 mi |
| 45068 | Waynesville | 11,597 | $96k | 9.5 mi |
| 45459 | Dayton | 28,553 | $90k | 7.3 mi (near) |
| 45449 | Dayton | 19,066 | $64k | 8.1 mi (near) |
| 45305 | Bellbrook | 11,498 | $123k | 9.5 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.