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/38230

38230

ZIP 38230 is Greenfield, Tennessee, in Weakley County; area code 731; Central time.

Type
Standard
Time zone
America/Chicago
County
Weakley
Metro area
Martin, TN
Population
3,765
Coordinates
36.1552, -88.7747
☼ Live from 38230 — Greenfield, TN

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 38230 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 38230
  • 🔢 Type 38230 into a pocket calculator and turn it upside down: OEZBE — not quite a word, sorry.
  • ➕ As a number, 38,230 = 2 × 5 × 3823. Its digits add up to 16, a total 1,922 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1001010101010110
  • 🏠 Its numerical neighbours: 38229 (Gleason, TN, 10 mi away) and 38231 (Henry, TN, 20 mi away).
  • 🔄 Backwards, 38230 becomes 03283, which is not a ZIP code at all.
  • 👥 37 other ZIP codes are made of exactly the same digits (02338, 02833, 03238, 03823, 03832, 08323, …). The farthest-flung twin is 83302 in Rogerson, ID, 1,444 miles away.
  • 🧭 Farther south than 68% of all ZIP codes, and farther west than 53%.
  • 🎯591 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 38230 and you would come out at 36.16°S, 91.23°E — 1,394 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 37m of daylight. Shortest: 9h 42m.
  • 📏 At 85.7 square miles of land, 38230 is bigger than 74% of ZIP codes — room for about 65 Central Parks.
🌙 The sky over 38230 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population3,765This ZIP3,765
Households1,499This ZIP1,499
Housing units1,699This ZIP1,699
Median age40.9This ZIP40.9Tennessee38.9US 38.9
Median household income$55,365This ZIP$55,365Tennessee$69,595US $80,734
Median home value$98,600This ZIP$98,600Tennessee$286,700US $332,700
Median gross rent$772This ZIP$772Tennessee$1,189US $1,413
Bachelor's degree or higher20.8%This ZIP20.8%
Mean commute27.2 minThis ZIP27.2 min
Population density43.9 / sq miThis ZIP43.9 / sq mi

Business and tax activity

Business establishments64This ZIP64
Employees816This ZIP816
Annual payroll$30,137,000This ZIP$30,137,000
Tax returns filed1,470This ZIP1,470
Total adjusted gross income$82,812,000This ZIP$82,812,000

Land area

Land area85.68 sq miThis ZIP85.68 sq mi
Water area0.09 sq miThis ZIP0.09 sq mi

Other place names in 38230

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

ZIP codes near 38230

ZIPCityDistance
38316 Bradford, TN 6.3 mi
38255 Sharon, TN 7.6 mi
38346 Idlewild, TN 8.8 mi
38369 Rutherford, TN 9.5 mi
38229 Gleason, TN 10.2 mi
38220 Atwood, TN 12.6 mi
38225 Dresden, TN 12.7 mi
38258 Trezevant, TN 13.1 mi
38238 Martin, TN 13.7 mi
38201 Mc Kenzie, TN 13.8 mi

Find every ZIP code within 10 miles of 38230 →

Questions about this ZIP code

Where is ZIP code 38230?

38230 is in Greenfield, Tennessee, in Weakley County, part of the Martin, TN micropolitan area. Its published point location is 36.1552, -88.7747.

What county is 38230 in?

38230 lies in Weakley County.

What area code is 38230?

Greenfield uses area code 731, from NANPA's telephone records.

What time zone is 38230 in?

38230 uses America/Chicago.

How many people live in 38230?

About 3,765 people live in ZIP code 38230, in 1,499 households, at 43.9 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 38230?

$55,365 a year, against $69,595 across Tennessee.

What ZIP codes are near 38230?

The closest are 38316 (6.3 mi), 38255 (7.6 mi), 38346 (8.8 mi), 38369 (9.5 mi) and 38229 (10.2 mi).

Is 38230 a PO Box ZIP code?

38230 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “38230 ZIP Code — Greenfield, Tennessee (Weakley County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/38230

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/38230.json

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