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Where 51649 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.
- 🔢 Type 51649 into a pocket calculator and turn it upside down: GhgIS — not quite a word, sorry.
- ➕ As a number, 51,649 = 13 × 29 × 137. Its digits add up to 25, a total 2,242 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1100100111000001 - 🏠 Its numerical neighbours: 51648 (Percival, IA, 16 mi away) and 51650 (Riverton, IA, 12 mi away).
- 🔄 Backwards, 51649 becomes 94615 — and that is a real ZIP code: Oakland, CA, 1,441 miles away.
- 👥 40 other ZIP codes are made of exactly the same digits (14569, 15469, 15946, 16945, 19456, 19465, …). The farthest-flung twin is 96451 in FPO AA, a military post office, 7,961 miles away.
- 🧭 Farther north than 65% of all ZIP codes, and farther west than 70%.
- 🎯176 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 51649 and you would come out at 40.85°S, 84.47°E — 907 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 07m of daylight. Shortest: 9h 14m.
- 📏 At 42.1 square miles of land, 51649 is bigger than 55% of ZIP codes — room for about 32 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 346This ZIP346 |
|---|---|
| Households | 128This ZIP128 |
| Housing units | 129This ZIP129 |
| Median age | 49.4This ZIP49.4Iowa38.6US 38.9 |
| Median household income | $58,333This ZIP$58,333Iowa$75,059US $80,734 |
| Median home value | $101,400This ZIP$101,400Iowa$208,000US $332,700 |
| Median gross rent | $1,156This ZIP$1,156Iowa$972US $1,413 |
| Bachelor's degree or higher | 32.0%This ZIP32.0% |
| Mean commute | 23.4 minThis ZIP23.4 min |
| Population density | 8.2 / sq miThis ZIP8.2 / sq mi |
Business and tax activity
| Business establishments | 6This ZIP6 |
|---|---|
| Employees | 31This ZIP31 |
| Annual payroll | $1,569,000This ZIP$1,569,000 |
| Tax returns filed | 160This ZIP160 |
| Total adjusted gross income | $11,463,000This ZIP$11,463,000 |
Land area
| Land area | 42.10 sq miThis ZIP42.10 sq mi |
|---|---|
| Water area | 0.25 sq miThis ZIP0.25 sq mi |
Other place names in 51649
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 51649
| ZIP | City | Distance |
|---|---|---|
51645 | Imogene, IA | 5.9 mi |
51652 | Sidney, IA | 7.4 mi |
51653 | Tabor, IA | 8.3 mi |
51639 | Farragut, IA | 9.5 mi |
51603 | Shenandoah, IA | 10.0 mi |
51551 | Malvern, IA | 10.2 mi |
51650 | Riverton, IA | 12.0 mi |
51540 | Hastings, IA | 12.1 mi |
51601 | Shenandoah, IA | 12.3 mi |
51654 | Thurman, IA | 13.4 mi |
Find every ZIP code within 10 miles of 51649 →
Questions about this ZIP code
Where is ZIP code 51649?
51649 is in Randolph, Iowa, in Fremont County. Its published point location is 40.8504, -95.5270.
What county is 51649 in?
51649 lies in Fremont County.
What area code is 51649?
Randolph uses area code 712, from NANPA's telephone records.
What time zone is 51649 in?
51649 uses America/Chicago.
How many people live in 51649?
About 346 people live in ZIP code 51649, in 128 households, at 8.2 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 51649?
$58,333 a year, against $75,059 across Iowa.
What ZIP codes are near 51649?
The closest are 51645 (5.9 mi), 51652 (7.4 mi), 51653 (8.3 mi), 51639 (9.5 mi) and 51603 (10 mi).
Is 51649 a PO Box ZIP code?
51649 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “51649 ZIP Code — Randolph, Iowa (Fremont County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/51649
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/51649.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.