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Where 51630 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 51630 into a pocket calculator and turn it upside down: OEgIS — not quite a word, sorry.
- ➕ As a number, 51,630 = 2 × 3 × 5 × 1721. Its digits add up to 15, a total 1,657 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1100100110101110 - 🏠 Its numerical neighbours: 51603 (Shenandoah, IA, 15 mi away) and 51631 (Braddyville, IA, 10 mi away).
- 🔄 Backwards, 51630 becomes 03615, which is not a ZIP code at all.
- 👥 66 other ZIP codes are made of exactly the same digits (01536, 01653, 03561, 05361, 06153, 06351, …). The farthest-flung twin is 01536 in North Grafton, MA, 1,219 miles away.
- 🧭 Farther north than 62% of all ZIP codes, and farther west than 69%.
- 🎯186 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 51630 and you would come out at 40.60°S, 84.81°E — 932 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 05m of daylight. Shortest: 9h 16m.
- 📏 At 26.2 square miles of land, 51630 is bigger than 43% of ZIP codes — room for about 20 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 160This ZIP160 |
|---|---|
| Households | 58This ZIP58 |
| Housing units | 64This ZIP64 |
| Median age | 52.0This ZIP52.0Iowa38.6US 38.9 |
| Median household income | $70,000This ZIP$70,000Iowa$75,059US $80,734 |
| Median home value | $189,300This ZIP$189,300Iowa$208,000US $332,700 |
| Bachelor's degree or higher | 11.8%This ZIP11.8% |
| Mean commute | 38.4 minThis ZIP38.4 min |
| Population density | 6.1 / sq miThis ZIP6.1 / sq mi |
Business and tax activity
| Business establishments | 5This ZIP5 |
|---|---|
| Employees | 23This ZIP23 |
| Annual payroll | $735,000This ZIP$735,000 |
Land area
| Land area | 26.20 sq miThis ZIP26.20 sq mi |
|---|---|
| Water area | 0.00 sq mi |
Other place names in 51630
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 51630
| ZIP | City | Distance |
|---|---|---|
51637 | College Springs, IA | 4.2 mi |
64445 | Elmo, MO | 4.8 mi |
51636 | Coin, IA | 5.0 mi |
64498 | Westboro, MO | 7.5 mi |
51647 | Northboro, IA | 7.9 mi |
51651 | Shambaugh, IA | 9.2 mi |
51656 | Yorktown, IA | 9.5 mi |
51631 | Braddyville, IA | 9.7 mi |
64431 | Clearmont, MO | 11.5 mi |
51601 | Shenandoah, IA | 12.3 mi |
Find every ZIP code within 10 miles of 51630 →
Questions about this ZIP code
Where is ZIP code 51630?
51630 is in Blanchard, Iowa, in Page County. Its published point location is 40.6010, -95.1943.
What county is 51630 in?
51630 lies in Page County.
What area code is 51630?
Blanchard uses area code 712, from NANPA's telephone records.
What time zone is 51630 in?
51630 uses America/Chicago.
How many people live in 51630?
About 160 people live in ZIP code 51630, in 58 households, at 6.1 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 51630?
$70,000 a year, against $75,059 across Iowa.
What ZIP codes are near 51630?
The closest are 51637 (4.2 mi), 64445 (4.8 mi), 51636 (5 mi), 64498 (7.5 mi) and 51647 (7.9 mi).
Is 51630 a PO Box ZIP code?
51630 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “51630 ZIP Code — Blanchard, Iowa (Page County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/51630
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/51630.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.