Zip Code 45431
Dayton, Ohio — Montgomery County
📍 ZIP code 45431 is in Dayton, Montgomery County, Ohio.
ZIP code 45431 is located in Dayton, Montgomery County, Ohio. It is a zip code in the Eastern (EST/EDT) Time Zone with an estimated population of 26,961. The area code for ZIP code 45431 is 937.
Quick Answer
Zip code 45431 is in Dayton, Ohio (Montgomery County). It has a population of 26,961, median household income of $80,058, and median home value of $197,600.
Population
26,961
Income
$80,058
Home Value
$197,600
Climate
87°F / 20°F
About Zip Code 45431
Zip code 45431 is located in Dayton, Ohio, within Montgomery County. Home to approximately 26,961 residents, this area sits at an elevation of 953 ft and falls within the Eastern (EST/EDT) timezone. The local area code is 937.
The median household income is $80,058 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $197,600, and the cost of living index is 79 (21% below the national average of 100).
Summers average a high of 87°F while winters drop to 20°F. The area receives about 42 in of rain and 12 in of snow annually. The zip code covers 11.5 square miles of land area.
Key Statistics
26,961
$80,058
$197,600
Eastern (EST/EDT)
937
953 ft
11.5 sq mi
34.9
12,888
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Compare With Nearby Zip Codes
| Metric | 45431 | 45432 | 45403 | 45430 | 45420 | 45434 |
|---|---|---|---|---|---|---|
| City | Dayton, OH | Dayton, OH | Dayton, OH | Dayton, OH | Dayton, OH | Dayton, OH |
| Population | 26,961 | 14,988 | 13,831 | 7,171 | 23,956 | 12,482 |
| Median Income | $80,058 | $83,323 | $36,250 | $107,500 | $56,670 | $142,260 |
| Home Value | $197,600 | $181,900 | $73,900 | $261,700 | $116,200 | $290,500 |
| Cost of Living | 79 | 78 | 60 | 106 | 60 | 137 |
| Median Age | 34.9 | 40.4 | 35.4 | 43.8 | 39.8 | 43 |
Cost of Living
100 = National Average. Dayton's cost of living is 21% below the national average.
vs. State Avg
Below
Affordability
Very Affordable
Income-to-Home
2.5x
Demographics
Zip code 45431 has a population of 26,961 people with a median age of 34.9. There are 12,888 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Dayton (45431) population trend from 2010 to 2024
↑ 52.9%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
87°F
20°F
42 in
12 in
Dayton experiences warm summers with average highs around 87°F. Winters are cold with lows averaging 20°F. The area receives about 12 in of snow per year.
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Housing & Economy
Median Home Value
$197,600
Median Household Income
$80,058
With 12,888 housing units across 11.5 square miles, 45431 has a housing density of 1,121 units per square mile. The home price-to-income ratio is 2.5x.
Location & Geography
Latitude
39.7638°
Longitude
-84.0842°
Land Area
11.5 sq mi
Water Area
0 sq mi
Nearby Zip Codes
Zip codes closest to 45431 (Dayton, OH) with distances:
All Zip Codes in Dayton, OH
Other zip codes serving Dayton:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 45431's $80,058. A way to compare Dayton to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 45431 (Dayton, OH). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Dayton, Ohio?
Dayton, Ohio uses zip code 45431 along with 7 other zip codes.
What county is zip code 45431 in?
Zip code 45431 is located in Montgomery County, Ohio.
What is the population of zip code 45431?
The population of zip code 45431 is 26,961 with a median age of 34.9.
Is 45431 in Dayton, Ohio?
Yes, zip code 45431 is in Dayton, Montgomery County, Ohio. The area code is 937.
Frequently Asked Questions
What city is zip code 45431 in?
Zip code 45431 is in Dayton, Ohio. It is part of Montgomery County and uses the Eastern (EST/EDT) timezone.
What is zip code 45431?
Zip code 45431 is a U.S. postal code in Dayton, Ohio (Montgomery County). It has a population of 26,961 and covers 11.5 square miles.
What is the population of zip code 45431?
The population of zip code 45431 (Dayton, OH) is 26,961 with a median age of 34.9. There are approximately 12,888 housing units in this area.
What is the median income in zip code 45431?
The median household income in zip code 45431 (Dayton, OH) is $80,058 per year. The cost of living index is 79 (100 = national average).
What is the average home price in zip code 45431?
The median home value in zip code 45431 (Dayton, OH) is $197,600. The cost of living index is 79 compared to the national average of 100.
What county is zip code 45431 in?
Zip code 45431 is located in Montgomery County, Ohio. The primary city is Dayton.
What is the area code for zip code 45431?
Zip code 45431 in Dayton, OH uses area code 937. It is located in the Eastern (EST/EDT) timezone.
Is zip code 45431 a good place to live?
Zip code 45431 (Dayton, OH) has a cost of living index of 79 (100 = national average), a median household income of $80,058, and median home values of $197,600. The median age is 34.9. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 45431?
The cost of living index for zip code 45431 (Dayton, OH) is 79, where 100 represents the national average. This area is below the national average. Median home value: $197,600.
What schools serve zip code 45431?
Zip code 45431 in Dayton, Ohio is served by the local school district of Montgomery County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.