Ohio · Census place 3977588
Troy, Ohio
Troy is a city in Miami County, Ohio with an estimated 27,122 residents on July 1, 2024. It is the 55th largest of 526 incorporated places of 1,000+ people in the state.
- Population 2024
- 27,122
- #55 of 526 in Ohio
- Change since 2020
- +2.8%
- +737 people
- Land area
- 12.6 sq mi
- + 0.22 sq mi water
- Density
- 2,146 / sq mi
- State median 2,000
Measure from here
Tools and pages that start from Troy
Troy population, 2020 to 2024
Troy added 737 residents from July 2020 to July 2024, a change of +2.8%. In the latest year it moved by +260. Among 254 Ohio places of 5,000 or more, that growth ranks 38th; the median place changed by -0.4%. The median place of 5,000+ in Ohio has 13,905 people, so Troy is 2.0 times that size.
Troy covers 12.64 square miles of land and 0.22 of water, for 2,146 people per square mile of land. The median Ohio place of 5,000+ has 2,000, so Troy is close to the typical town.
What county Troy is in
All of Troy's residents live in Miami County, which had 111,950 residents in 2024. Troy holds 24.2% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.
ZIP codes in Troy
1 ZIP Code Tabulation Area (ZCTA) overlaps Troy by at least 10% of the ZCTA's or the city's land: 45373. 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 Troy is
The Census internal point of Troy is at 40.041000, -84.222400. Columbus, the capital, is 64.9 miles E in a straight line. The nearest larger place is Huber Heights, OH (43,590 people), 13.9 miles away. The nearest city of 100,000 or more is Dayton, OH, 17.8 miles away.
Internal point
- Decimal
- 40.041000, -84.222400
- DMS
- 40°02'27.60"N 84°13'20.64"W
- UTM
- 16N 736969.4E 4436004.7N
- Geohash
- dph5g3ppe
- Plus code
- 86GQ2QRH+C2
Daylight in Troy
At 40.04° N, Troy gets about 15 h 01 min of daylight around the June solstice and 9 h 19 min around the December solstice, a swing of 5 h 42 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.
Places near Troy
The eight nearest incorporated places of 1,000+ in Ohio, measured between internal points. The closest is Tipp City, 5.6 miles away, with 10,596 people.
Questions people ask
What is the population of Troy, OH?
27,122 on July 1, 2024, in the Census Vintage 2024 estimates. That is up 737 (2.8%) from 26,385 in July 2020.
What county is Troy in?
Miami County. All of its residents live in that county.
What ZIP codes cover Troy?
1 ZIP Code Tabulation Area overlaps it by at least 10% of either area: 45373.
How far is Troy from Columbus?
64.9 miles (104.4 km) in a straight line, heading E from Troy.
What is the nearest larger city to Troy?
Huber Heights, OH, with 43,590 residents, 13.9 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.