Residential delivery area · Ohio
ZIP Code 45403: Dayton, OH
ZIP code 45403 is in Dayton, Ohio, entirely in Montgomery County (Census 2020 ZIP-county file). About 14,000 people live there (Census Bureau, ACS 2020-2024), the 18th most populous of Dayton's 30 residential ZIP codes. Median household income is $38,323 (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Dayton · 30 residential ZIPs
- County
- Montgomery County
- Census places
- Dayton
- Metro area
- Dayton-Kettering-Beavercreek, OH
- House district
- OH-10 119th Congress
- State
- Ohio
- Time zone
- Eastern
- Land area
- 3.1 sq mi · 4,324 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 45403?
45403 centers on 39.763°, -84.150° and covers 3.1 square miles of land plus 0.0 of water. It borders 5 ZIP codes: 45410, 45404, 45402, 45431, 45432.
The map draws ZIP code areas only. For the streets inside 45403, 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 45403 compare with the rest of Dayton?
| Measure | 45403 | In Dayton | In Montgomery County | In OH |
|---|---|---|---|---|
| People (ACS 2020-2024) | 13,608 | 18th of 30 | 23rd of 39 | 316th of 1,233 |
| Median household income | $38k | 24th of 25 | 33rd of 34 | 732nd of 755 |
| Median home value | $88k | 20th of 25 | 29th of 34 | 779th of 810 |
Its median household income is higher than in 5% of U.S. residential ZIP codes, and it is denser than 92% 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 45403?
The 2020 Census counted 15,130 people in 45403; the ACS, which samples households over 2020-2024, estimates 13,608. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 13,608±1,476 (90% margin)
- 2020 Census count
- 15,130
- Households
- 6,247
- Median age
- 35.0
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 45403?
Of the 13,608 people the ACS estimates in 45403, 24.6% are under 18 and 10.2% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (62.8%), then Black (not Hispanic) (16.3%).
- Under 1824.6%
- 18 to 6465.2%
- 65 and older10.2%
- White, not Hispanic62.8%
- Black, not Hispanic16.3%
- Hispanic or Latino14.6%
- Other or two or more5.4%
- Asian, not Hispanic0.9%
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 45403 earn?
Median household income is $38,323 (ACS 2020-2024), the 33rd highest of the 34 ranked ZIP codes in Montgomery County.
- Median household income
- $38,323±$6,237
- Income per person
- $22,632
- Below the poverty line
- 35.1%
- Unemployed (of the labor force)
- 10.0%
- Adults 25+ with a bachelor's degree
- 13.3%
- Adjusted gross income per tax return, 2022
- $37,4635,640 returns; wages 82% 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 45403?
FHFA's house price index for 45403, built from repeat sales and appraisals of the same homes, rose 154% from 2015 to 2025 and rose 49% from 2020 to 2025, and moved +7.4% in 2025.
- Median home value (owners' estimate)
- $87,500
- Median gross rent
- $779
- Homes owned by their occupants
- 40.0%
- Housing units
- 7,310
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 45403?
216 business establishments had a location in this ZIP code in 2023, 6 more than in 2018; the most are in other services (except public administration) (ZIP Code Business Patterns).
- Other services (except public administration)38
- Manufacturing34
- Retail trade31
- Construction24
- Health care and social assistance21
- Accommodation and food 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 45403?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 45410 | Dayton | 14,694 | $47k | 1.2 mi |
| 45404 | Dayton | 9,826 | $39k | 1.7 mi |
| 45402 | Dayton | 9,407 | $48k | 3.1 mi |
| 45431 | Dayton | 27,951 | $83k | 3.5 mi |
| 45432 | Dayton | 15,055 | $83k | 3.8 mi |
| 45423 | Dayton | 0 | – | 2.2 mi (near) |
| 45469 | Dayton | 168 | – | 2.2 mi (near) |
| 45420 | Dayton | 24,411 | $61k | 3.3 mi (near) |
| 45419 | Dayton | 17,008 | $92k | 3.5 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.