Ohio · Census place 3949434
Miamisburg, Ohio
Miamisburg is a city in Montgomery County, Ohio with an estimated 20,253 residents on July 1, 2024. It is the 85th largest of 526 incorporated places of 1,000+ people in the state.
- Population 2024
- 20,253
- #85 of 526 in Ohio
- Change since 2020
- +1.7%
- +340 people
- Land area
- 12.3 sq mi
- + 0.19 sq mi water
- Density
- 1,652 / sq mi
- State median 2,000
Measure from here
Tools and pages that start from Miamisburg
Miamisburg population, 2020 to 2024
Miamisburg added 340 residents from July 2020 to July 2024, a change of +1.7%. In the latest year it moved by +383. Among 254 Ohio places of 5,000 or more, that growth ranks 57th; the median place changed by -0.4%. The median place of 5,000+ in Ohio has 13,905 people, so Miamisburg is 1.5 times that size.
Miamisburg covers 12.26 square miles of land and 0.19 of water, for 1,652 people per square mile of land. The median Ohio place of 5,000+ has 2,000, so Miamisburg is less dense than the typical town.
What county Miamisburg is in
All of Miamisburg's residents live in Montgomery County, which had 537,443 residents in 2024. Miamisburg holds 3.8% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.
ZIP codes in Miamisburg
1 ZIP Code Tabulation Area (ZCTA) overlaps Miamisburg by at least 10% of the ZCTA's or the city's land: 45342. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a city that annexed land after 2020 may reach into ZIP codes not listed here.
Where Miamisburg is
The Census internal point of Miamisburg is at 39.630900, -84.270700. Columbus, the capital, is 71.2 miles ENE in a straight line. The nearest larger place is Centerville, OH (26,311 people), 6.6 miles away. The nearest city of 100,000 or more is Dayton, OH, 11.3 miles away.
Internal point
- Decimal
- 39.630900, -84.270700
- DMS
- 39°37'51.24"N 84°16'14.52"W
- UTM
- 16N 734238.4E 4390352.0N
- Geohash
- dph16qefw
- Plus code
- 86FQJPJH+9P
Daylight in Miamisburg
At 39.63° N, Miamisburg gets about 14 h 59 min of daylight around the June solstice and 9 h 22 min around the December solstice, a swing of 5 h 37 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.
Places near Miamisburg
The eight nearest incorporated places of 1,000+ in Ohio, measured between internal points. The closest is West Carrollton, 2.8 miles away, with 12,911 people.
Questions people ask
What is the population of Miamisburg, OH?
20,253 on July 1, 2024, in the Census Vintage 2024 estimates. That is up 340 (1.7%) from 19,913 in July 2020.
What county is Miamisburg in?
Montgomery County. All of its residents live in that county.
What ZIP codes cover Miamisburg?
1 ZIP Code Tabulation Area overlaps it by at least 10% of either area: 45342.
How far is Miamisburg from Columbus?
71.2 miles (114.6 km) in a straight line, heading ENE from Miamisburg.
What is the nearest larger city to Miamisburg?
Centerville, OH, with 26,311 residents, 6.6 miles away between internal points.
Sources and data as of
Data as of: Census Vintage 2024 subcounty estimates (July 1, 2024), 2024 Gazetteer places, 2020 ZCTA to place relationship file.
- 01Census Vintage 2024 subcounty population estimates
- 02Census 2024 Gazetteer, places
- 03Census 2020 ZCTA to place relationship file
- 04Census 2024 cartographic boundary file, counties (1:5,000,000)
How every number is computed: methodology. Spotted a wrong figure? Report an error.