Zip Code 45342
Miamisburg, Ohio — Montgomery County
📍 ZIP code 45342 is in Miamisburg, Montgomery County, Ohio.
ZIP code 45342 is located in Miamisburg, Montgomery County, Ohio. It is a zip code in the Eastern (EST/EDT) Time Zone with an estimated population of 36,675. The area code for ZIP code 45342 is 937.
Quick Answer
Zip code 45342 is in Miamisburg, Ohio (Montgomery County). It has a population of 36,675, median household income of $83,936, and median home value of $206,800.
Population
36,675
Income
$83,936
Home Value
$206,800
Climate
86°F / 22°F
About Zip Code 45342
Zip code 45342 is located in Miamisburg, Ohio, within Montgomery County. Home to approximately 36,675 residents, this area sits at an elevation of 870 ft and falls within the Eastern (EST/EDT) timezone. The local area code is 937.
The median household income is $83,936 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $206,800, and the cost of living index is 81 (19% below the national average of 100).
Summers average a high of 86°F while winters drop to 22°F. The area receives about 41 in of rain and 8 in of snow annually. The zip code covers 34.6 square miles of land area and 0.4 square miles of water.
Key Statistics
36,675
$83,936
$206,800
Eastern (EST/EDT)
937
870 ft
34.6 sq mi
38.4
15,818
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Compare With Nearby Zip Codes
| Metric | 45342 | 45449 | 45418 | 45459 | 45439 | 45066 |
|---|---|---|---|---|---|---|
| City | Miamisburg, OH | Dayton, OH | Dayton, OH | Dayton, OH | Dayton, OH | Springboro, OH |
| Population | 36,675 | 18,627 | 0 | 28,454 | 12,246 | 26,663 |
| Median Income | $83,936 | $60,303 | $0 | $89,144 | $47,788 | $122,208 |
| Home Value | $206,800 | $147,700 | $0 | $276,100 | $120,100 | $362,500 |
| Cost of Living | 81 | 60 | 100 | 101 | 60 | 135 |
| Median Age | 38.4 | 36.2 | 0 | 48.7 | 33.8 | 37.9 |
Cost of Living
100 = National Average. Miamisburg's cost of living is 19% below the national average.
vs. State Avg
Below
Affordability
Affordable
Income-to-Home
2.5x
Demographics
Zip code 45342 has a population of 36,675 people with a median age of 38.4. There are 15,818 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Miamisburg (45342) population trend from 2010 to 2024
↓ -22.2%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
86°F
22°F
41 in
8 in
Miamisburg experiences warm summers with average highs around 86°F. Winters are cool with lows averaging 22°F. The area receives about 8 in of snow per year.
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Housing & Economy
Median Home Value
$206,800
Median Household Income
$83,936
With 15,818 housing units across 34.6 square miles, 45342 has a housing density of 457 units per square mile. The home price-to-income ratio is 2.5x.
Location & Geography
Latitude
39.6293°
Longitude
-84.2760°
Land Area
34.6 sq mi
Water Area
0.4 sq mi
Nearby Zip Codes
Zip codes closest to 45342 (Miamisburg, OH) with distances:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 45342's $83,936. A way to compare Miamisburg 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 45342 (Miamisburg, 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 Miamisburg, Ohio?
Miamisburg, Ohio uses zip code 45342.
What county is zip code 45342 in?
Zip code 45342 is located in Montgomery County, Ohio.
What is the population of zip code 45342?
The population of zip code 45342 is 36,675 with a median age of 38.4.
Is 45342 in Miamisburg, Ohio?
Yes, zip code 45342 is in Miamisburg, Montgomery County, Ohio. The area code is 937.
Frequently Asked Questions
What city is zip code 45342 in?
Zip code 45342 is in Miamisburg, Ohio. It is part of Montgomery County and uses the Eastern (EST/EDT) timezone.
What is zip code 45342?
Zip code 45342 is a U.S. postal code in Miamisburg, Ohio (Montgomery County). It has a population of 36,675 and covers 34.6 square miles.
What is the population of zip code 45342?
The population of zip code 45342 (Miamisburg, OH) is 36,675 with a median age of 38.4. There are approximately 15,818 housing units in this area.
What is the median income in zip code 45342?
The median household income in zip code 45342 (Miamisburg, OH) is $83,936 per year. The cost of living index is 81 (100 = national average).
What is the average home price in zip code 45342?
The median home value in zip code 45342 (Miamisburg, OH) is $206,800. The cost of living index is 81 compared to the national average of 100.
What county is zip code 45342 in?
Zip code 45342 is located in Montgomery County, Ohio. The primary city is Miamisburg.
What is the area code for zip code 45342?
Zip code 45342 in Miamisburg, OH uses area code 937. It is located in the Eastern (EST/EDT) timezone.
Is zip code 45342 a good place to live?
Zip code 45342 (Miamisburg, OH) has a cost of living index of 81 (100 = national average), a median household income of $83,936, and median home values of $206,800. The median age is 38.4. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 45342?
The cost of living index for zip code 45342 (Miamisburg, OH) is 81, where 100 represents the national average. This area is below the national average. Median home value: $206,800.
What schools serve zip code 45342?
Zip code 45342 in Miamisburg, 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.