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/65640

65640

ZIP 65640 is Dunnegan, Missouri, mostly in Polk County; area code 417; Central time.

Type
Standard
Time zone
America/Chicago
County
Polk +1 more
Metro area
Springfield, MO
Population
1,530
Coordinates
37.6985, -93.5668
☼ Live from 65640 — Dunnegan, MO

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 65640 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 65640
  • 🔢 Type 65640 into a pocket calculator and turn it upside down: OhgSg — not quite a word, sorry.
  • ➕ As a number, 65,640 = 2 × 2 × 2 × 3 × 5 × 547. Its digits add up to 21, a total 2,594 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10000000001101000
  • 🏠 Its numerical neighbours: 65638 (Drury, MO, 91 mi away) and 65641 (Eagle Rock, MO, 81 mi away).
  • 🔄 Backwards, 65640 becomes 04656, which is not a ZIP code at all.
  • 👥 28 other ZIP codes are made of exactly the same digits (05466, 05664, 06456, 45066, 45660, 46056, …). The farthest-flung twin is 05664 in Northfield Falls, VT, 1,175 miles away.
  • 🧭 Farther south than 60% of all ZIP codes, and farther west than 65%.
  • 🎯307 miles southeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 65640 and you would come out at 37.70°S, 86.43°E — 1,139 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 46m of daylight. Shortest: 9h 33m.
  • 📏 At 39.4 square miles of land, 65640 is bigger than 53% of ZIP codes — room for about 30 Central Parks.
🌙 The sky over 65640 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population1,530This ZIP1,530
Households356This ZIP356
Housing units389This ZIP389
Median age28.3This ZIP28.3Missouri39.0US 38.9
Median household income$61,136This ZIP$61,136Missouri$70,702US $80,734
Median home value$171,700This ZIP$171,700Missouri$230,300US $332,700
Bachelor's degree or higher4.2%This ZIP4.2%
Mean commute30.8 minThis ZIP30.8 min
Population density38.9 / sq miThis ZIP38.9 / sq mi

Business and tax activity

Business establishments6This ZIP6
Employees16This ZIP16
Annual payroll$363,000This ZIP$363,000
Tax returns filed370This ZIP370
Total adjusted gross income$20,024,000This ZIP$20,024,000

Land area

Land area39.36 sq miThis ZIP39.36 sq mi
Water area0.10 sq miThis ZIP0.10 sq mi

Counties 65640 spans

A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.

CountyShare of this ZIP
Polk County 74.2%
Cedar County 25.9%

ZIP codes near 65640

ZIPCityDistance
65649 Fair Play, MO 6.4 mi
65674 Humansville, MO 6.8 mi
65650 Flemington, MO 10.5 mi
65613 Bolivar, MO 10.6 mi
65601 Aldrich, MO 11.7 mi
65785 Stockton, MO 14.1 mi
65635 Dadeville, MO 14.2 mi
65607 Caplinger Mills, MO 14.6 mi
64738 Collins, MO 14.8 mi
65645 Eudora, MO 15.4 mi

Find every ZIP code within 10 miles of 65640 →

Questions about this ZIP code

Where is ZIP code 65640?

65640 is in Dunnegan, Missouri, in Polk County, part of the Springfield, MO metropolitan area. Its published point location is 37.6985, -93.5668.

What county is 65640 in?

65640 spans 2 counties: Polk County and Cedar County. Most of it falls in Polk County, measured by overlapping land area — the county holding the most land in a ZIP code is not always the one holding the most residents.

What area code is 65640?

Dunnegan uses area code 417, from NANPA's telephone records.

What time zone is 65640 in?

65640 uses America/Chicago.

How many people live in 65640?

About 1,530 people live in ZIP code 65640, in 356 households, at 38.9 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 65640?

$61,136 a year, against $70,702 across Missouri.

What ZIP codes are near 65640?

The closest are 65649 (6.4 mi), 65674 (6.8 mi), 65650 (10.5 mi), 65613 (10.6 mi) and 65601 (11.7 mi).

Is 65640 a PO Box ZIP code?

65640 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “65640 ZIP Code — Dunnegan, Missouri (Polk County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/65640

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/65640.json

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