Residential delivery area · Ohio
ZIP Code 45420: Dayton, OH
ZIP code 45420 uses the postal name Dayton, Ohio and lies entirely in Montgomery County (Census 2020 ZIP-county file). About 24,000 people live there (Census Bureau, ACS 2020-2024), the 7th most populous of Dayton's 30 residential ZIP codes. Median household income is $60,588 (Census Bureau, ACS 2020-2024). Most of its land (63%) lies in the city of Kettering; 37% is in Dayton.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Dayton · 30 residential ZIPs
- County
- Montgomery County
- Census places
- Kettering (63%); Dayton (37%)
- Neighborhoods
- Greenmont, Ohmer Park GeoNames
- Metro area
- Dayton-Kettering-Beavercreek, OH
- House district
- OH-10 119th Congress
- State
- Ohio
- Time zone
- Eastern
- Land area
- 6.4 sq mi · 3,788 people per sq mi
- PO Box ZIPs
- 13 more ZIP codes use the name Dayton for PO boxes or single organizations
Where is ZIP code 45420?
45420 centers on 39.719°, -84.129° and covers 6.4 square miles of land plus 0.0 of water. It borders 7 ZIP codes: 45419, 45410, 45430, 45432, 45429, 45409, 45440.
The map draws ZIP code areas only. For the streets inside 45420, 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); neighborhoods from the GeoNames gazetteer (CC BY 4.0), placed in this ZIP code by PlainZIP.
How does 45420 compare with the rest of Dayton?
| Measure | 45420 | In Dayton | In Montgomery County | In OH |
|---|---|---|---|---|
| People (ACS 2020-2024) | 24,411 | 7th of 30 | 9th of 39 | 156th of 1,233 |
| Median household income | $61k | 14th of 25 | 23rd of 34 | 554th of 755 |
| Median home value | $131k | 17th of 25 | 26th of 34 | 695th of 810 |
Its median household income is higher than in 30% of U.S. residential ZIP codes, and it is denser than 91% 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 45420?
The 2020 Census counted 25,045 people in 45420; the ACS, which samples households over 2020-2024, estimates 24,411. Between the 2010 and 2020 censuses its population fell 1.5% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 24,411
- 2020 Census count
- 25,045−1.5% since 2010 (25,438)
- Households
- 11,985
- Median age
- 36.8
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 45420?
Of the 24,411 people the ACS estimates in 45420, 18.4% are under 18 and 15.7% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (81.6%).
- Under 1818.4%
- 18 to 6465.9%
- 65 and older15.7%
- White, not Hispanic81.6%
- Black, not Hispanic6.2%
- Other or two or more5.4%
- Hispanic or Latino3.8%
- Asian, not Hispanic3.0%
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 45420 earn?
Median household income is $60,588 (ACS 2020-2024), the 23rd highest of the 34 ranked ZIP codes in Montgomery County. It rose from $53,375 in 2015-2019 (in 2024 dollars), a change larger than the surveys' margins of error.
- Median household income
- $60,588
- Income per person
- $35,342
- Below the poverty line
- 13.2%
- Unemployed (of the labor force)
- 4.5%
- Adults 25+ with a bachelor's degree
- 27.9%
- Adjusted gross income per tax return, 2022
- $49,65512,490 returns; wages 80% 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 45420?
FHFA's house price index for 45420, built from repeat sales and appraisals of the same homes, rose 133% from 2015 to 2025 and rose 64% from 2020 to 2025, and moved +6.4% in 2025.
- Median home value (owners' estimate)
- $131,300
- Median gross rent
- $985
- Homes owned by their occupants
- 62.4%
- Housing units
- 12,450
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 45420?
329 business establishments had a location in this ZIP code in 2023, 20 fewer than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade64
- Health care and social assistance47
- Accommodation and food services45
- Other services (except public administration)41
- Professional, scientific, and technical services24
- Administrative and support and waste management and remediation services17
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 45420?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 45419 | Dayton | 17,008 | $92k | 2.1 mi |
| 45410 | Dayton | 14,694 | $47k | 2.5 mi |
| 45430 | Dayton | 7,371 | $116k | 2.8 mi |
| 45432 | Dayton | 15,055 | $83k | 2.7 mi |
| 45429 | Dayton | 26,347 | $80k | 3.0 mi |
| 45409 | Dayton | 15,293 | $87k | 3.1 mi |
| 45440 | Dayton | 22,358 | $82k | 3.5 mi |
| 45469 | Dayton | 168 | – | 3.0 mi (near) |
| 45403 | Dayton | 13,608 | $38k | 3.3 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.