Residential delivery area · Ohio
ZIP Code 45309: Brookville, OH
ZIP code 45309 uses the postal name Brookville, Ohio and lies mostly in Montgomery County (95% of its land), reaching into Darke County and Miami County (Census 2020 ZIP-county file). About 12,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $75,409 (Census Bureau, ACS 2020-2024). By Census place, 6% of its land lies in Brookville, and 5% in smaller places; 89% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Brookville · its only residential ZIP
- County
- Montgomery County (95%); Darke County (2%); Miami County (2%)
- Census places
- Brookville
- Metro area
- Dayton-Kettering-Beavercreek, OH
- House districts
- OH-10 (95%), OH-8 (5%) 119th Congress, by share of land
- State
- Ohio
- Time zone
- Eastern
- Land area
- 65.9 sq mi · 180 people per sq mi
Where is ZIP code 45309?
45309 centers on 39.843°, -84.415° and covers 65.9 square miles of land plus 0.0 of water. It borders 12 ZIP codes: 45315, 45354, 45378, 45426, 45322, 45338, 45345, 45383, 45337, 45381 and more.
The map draws ZIP code areas only. For the streets inside 45309, 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 45309 compare with the rest of Montgomery County?
| Measure | 45309 | In Montgomery County | In OH |
|---|---|---|---|
| People (ACS 2020-2024) | 11,876 | 26th of 39 | 348th of 1,233 |
| Median household income | $75k | 19th of 34 | 319th of 755 |
| Median home value | $215k | 12th of 34 | 329th of 810 |
Its median household income is higher than in 56% of U.S. residential ZIP codes, and it is denser than 61% 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 45309?
The 2020 Census counted 12,050 people in 45309; the ACS, which samples households over 2020-2024, estimates 11,876. Between the 2010 and 2020 censuses its population fell 0.6% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 11,876
- 2020 Census count
- 12,050−0.6% since 2010 (12,123)
- Households
- 4,648
- Median age
- 46.7
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 45309?
Of the 11,876 people the ACS estimates in 45309, 23.2% are under 18 and 25.9% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (92.1%).
- Under 1823.2%
- 18 to 6450.9%
- 65 and older25.9%
- White, not Hispanic92.1%
- Other or two or more4.3%
- Asian, not Hispanic2.5%
- Black, not Hispanic0.7%
- Hispanic or Latino0.5%
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 45309 earn?
Median household income is $75,409 (ACS 2020-2024), the 19th highest of the 34 ranked ZIP codes in Montgomery County. It is not measurably different from 2015-2019 ($76,473 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $75,409
- Income per person
- $36,077
- Below the poverty line
- 7.4%
- Unemployed (of the labor force)
- 4.6%
- Adults 25+ with a bachelor's degree
- 24.6%
- Adjusted gross income per tax return, 2022
- $76,2425,890 returns; wages 67% 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 45309?
FHFA's house price index for 45309, built from repeat sales and appraisals of the same homes, rose 98% from 2015 to 2025 and rose 49% from 2020 to 2025, and moved +4.7% in 2025.
- Median home value (owners' estimate)
- $214,700
- Median gross rent
- $982
- Homes owned by their occupants
- 74.1%
- Housing units
- 4,990
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 45309?
209 business establishments had a location in this ZIP code in 2023, 4 fewer than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction41
- Other services (except public administration)33
- Retail trade23
- Accommodation and food services21
- Health care and social assistance17
- Finance and insurance14
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 45309?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 45315 | Clayton | 4,905 | $92k | 4.2 mi |
| 45354 | Phillipsburg | 553 | $67k | 4.7 mi |
| 45378 | Verona | 539 | $73k | 5.7 mi |
| 45426 | Dayton | 14,114 | $52k | 6.1 mi |
| 45322 | Englewood | 20,884 | $75k | 6.2 mi |
| 45338 | Lewisburg | 4,761 | $75k | 6.9 mi |
| 45345 | New Lebanon | 6,110 | $80k | 7.2 mi |
| 45383 | West Milton | 6,912 | $67k | 9.0 mi |
| 45337 | Laura | 1,703 | $108k | 9.6 mi |
| 45381 | West Alexandria | 5,626 | $62k | 9.7 mi |
| 45417 | Dayton | 28,186 | $37k | 10.3 mi |
| 45304 | Arcanum | 7,599 | $78k | 11.2 mi |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.