Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/OH/TROY

Troy ZIP codes, Ohio

Troy, OH has 2 ZIP codes (45373 and 45374) and area code 937. The largest is 45373.

USPS city name
2 ZIP codes
Population
26,842
Area code
937
State
Ohio

Troy in numbers

About 26,842 people live in Troy, in 11,243 households. The median household income is $68,830 a year, 4% below the Ohio median of $71,389 (US: $80,734). The median owner-occupied home is valued at $217,400 (about the same as the Ohio median), and median gross rent is $1,003 a month. The median age is 37.8; 33.2% of adults 25 and over hold a bachelor's degree or higher (31.5% across Ohio); the average commute takes 22 minutes.

Population26,842Troy26,842
Households11,243Troy11,243
Median age37.8Troy37.8Ohio39.7US 38.9
Median household income$68,830Troy$68,830Ohio$71,389US $80,734
Median home value$217,400Troy$217,400Ohio$214,800US $332,700
Median gross rent$1,003Troy$1,003Ohio$1,034US $1,413
Bachelor's degree or higher33.2%Troy33.2%Ohio31.5%US 35.7%
Mean commute21.6 minTroy21.6 minOhio23.4 minUS 26.4 min
Population density2,124 / sq miTroy2,124 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Troy city. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Troy

ZIP codes with the USPS city name Troy
ZIP City Type Population Median income Median home
45373 Troy , OH Standard 37,565 $75,742 $253,400
45374 Troy , OH No street area — — —

Map of Troy ZIP codes

4537345374

The ZIP codes of Troy, OH, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Troy

The nearest larger towns are Huber Heights (43,455 people, 14 mi), Dayton (136,579 people, 18 mi) and Fairborn (34,534 people, 20 mi).

Towns near Troy
TownPopulationDistance
Tipp City 10,439 5.6 mi
Piqua 20,646 7.4 mi
West Milton 4,771 7.9 mi
Covington 2,596 8.6 mi
Union 7,037 10.0 mi
Vandalia 15,053 11.3 mi
New Carlisle 5,544 12.3 mi
Englewood 13,356 13.0 mi
Clayton 13,277 13.0 mi
Huber Heights 43,455 13.9 mi
Park Layne 4,301 14.3 mi
Shiloh 10,526 15.6 mi
Fort McKinley 3,508 16.5 mi
Brookville 5,779 17.3 mi

More nearby: every ZIP code in Miami County · Ohio ZIP codes

Cite this page

zipcodes.pro. “Troy, OH ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/oh/troy

Underlying data is public domain or openly licensed — sources, vintages and licences.