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 — ZIP/45390

45390

ZIP 45390 is Union City, Ohio, in Darke County; area code 937; Eastern time.

Type
Standard
Time zone
America/New_York
County
Darke
Metro area
Greenville, OH
Population
3,432
Coordinates
40.2152, -84.7605
☼ Live from 45390 — Union City, OH

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 45390 is

Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.

★ Weird and wonderful facts about 45390
  • 🔢 Type 45390 into a pocket calculator and turn it upside down: OGESh — not quite a word, sorry.
  • ➕ As a number, 45,390 = 2 × 3 × 5 × 17 × 89. Its digits add up to 21, a total 2,594 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1011000101001110
  • 🏠 Its numerical neighbours: 45389 (Christiansburg, OH, 40 mi away) and 45401 (Dayton, OH, 41 mi away).
  • 🔄 Backwards, 45390 becomes 09354 — and that is a real ZIP code: APO AE, a military post office, 4,167 miles away.
  • 👥 52 other ZIP codes are made of exactly the same digits (04359, 04539, 04935, 04953, 05439, 09354, …). The farthest-flung twin is 09354 in APO AE, a military post office, 4,167 miles away.
  • 🧭 Farther north than 58% of all ZIP codes, and farther east than 57%.
  • 🎯731 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 45390 and you would come out at 40.22°S, 95.24°E — 1,281 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 02m of daylight. Shortest: 9h 18m.
  • 📏 At 53.6 square miles of land, 45390 is bigger than 61% of ZIP codes — room for about 41 Central Parks.
🌙 The sky over 45390 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population3,432This ZIP3,432
Households1,311This ZIP1,311
Housing units1,500This ZIP1,500
Median age34.2This ZIP34.2Ohio39.7US 38.9
Median household income$52,150This ZIP$52,150Ohio$71,389US $80,734
Median home value$118,100This ZIP$118,100Ohio$214,800US $332,700
Median gross rent$641This ZIP$641Ohio$1,034US $1,413
Bachelor's degree or higher12.2%This ZIP12.2%
Mean commute23.0 minThis ZIP23.0 min
Population density64.1 / sq miThis ZIP64.1 / sq mi

Business and tax activity

Business establishments53This ZIP53
Employees371This ZIP371
Annual payroll$15,939,000This ZIP$15,939,000
Tax returns filed1,370This ZIP1,370
Total adjusted gross income$69,354,000This ZIP$69,354,000

Land area

Land area53.55 sq miThis ZIP53.55 sq mi
Water area0.12 sq miThis ZIP0.12 sq mi

Other place names in 45390

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 45390

ZIPCityDistance
47390 Union City, IN 4.6 mi
45303 Ansonia, OH 5.3 mi
47382 Saratoga, IN 8.5 mi
45362 Rossburg, OH 8.8 mi
45348 New Weston, OH 9.6 mi
45331 Greenville, OH 9.9 mi
45310 Burkettsville, OH 11.4 mi
45352 Palestine, OH 11.4 mi
47394 Winchester, IN 12.4 mi
45350 North Star, OH 12.4 mi

Find every ZIP code within 10 miles of 45390 →

Questions about this ZIP code

Where is ZIP code 45390?

45390 is in Union City, Ohio, in Darke County, part of the Greenville, OH micropolitan area. Its published point location is 40.2152, -84.7605.

What county is 45390 in?

45390 lies in Darke County.

What area code is 45390?

Union City uses area code 937, from NANPA's telephone records.

What time zone is 45390 in?

45390 uses America/New_York.

How many people live in 45390?

About 3,432 people live in ZIP code 45390, in 1,311 households, at 64.1 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What is the median household income in 45390?

$52,150 a year, against $71,389 across Ohio.

What ZIP codes are near 45390?

The closest are 47390 (4.6 mi), 45303 (5.3 mi), 47382 (8.5 mi), 45362 (8.8 mi) and 45348 (9.6 mi).

Is 45390 a PO Box ZIP code?

45390 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “45390 ZIP Code — Union City, Ohio (Darke County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/45390

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/45390.json

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