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Where 51020 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 51020 into a pocket calculator and turn it upside down: OZOIS — not quite a word, sorry.
- ➕ As a number, 51,020 = 2 × 2 × 5 × 2551. Its digits add up to 8, a total 251 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1100011101001100 - 🏠 Its numerical neighbours: 51019 (Danbury, IA, 23 mi away) and 51022 (Granville, IA, 39 mi away).
- 🔄 Backwards, 51020 becomes 02015, which is not a ZIP code at all.
- 👥 23 other ZIP codes are made of exactly the same digits (01520, 02051, 02150, 05201, 10025, 10502, …). The farthest-flung twin is 02051 in Marshfield Hills, MA, 1,256 miles away.
- 🧭 Farther north than 79% of all ZIP codes, and farther west than 69%.
- 🎯248 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 51020 and you would come out at 42.52°S, 84.59°E — 834 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 18m of daylight. Shortest: 9h 03m.
- 📏 At 57.0 square miles of land, 51020 is bigger than 63% of ZIP codes — room for about 43 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 632This ZIP632 |
|---|---|
| Households | 231This ZIP231 |
| Housing units | 268This ZIP268 |
| Median age | 33.0This ZIP33.0Iowa38.6US 38.9 |
| Median household income | $80,066This ZIP$80,066Iowa$75,059US $80,734 |
| Median home value | $92,500This ZIP$92,500Iowa$208,000US $332,700 |
| Median gross rent | $658This ZIP$658Iowa$972US $1,413 |
| Bachelor's degree or higher | 15.5%This ZIP15.5% |
| Mean commute | 21.8 minThis ZIP21.8 min |
| Population density | 11.1 / sq miThis ZIP11.1 / sq mi |
Business and tax activity
| Business establishments | 16This ZIP16 |
|---|---|
| Employees | 140This ZIP140 |
| Annual payroll | $7,784,000This ZIP$7,784,000 |
| Tax returns filed | 260This ZIP260 |
| Total adjusted gross income | $22,145,000This ZIP$22,145,000 |
Land area
| Land area | 56.95 sq miThis ZIP56.95 sq mi |
|---|---|
| Water area | 0.01 sq miThis ZIP0.01 sq mi |
Counties 51020 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Ida County | 71.5% |
| Sac County | 12.9% |
| Cherokee County | 12.0% |
| Buena Vista County | 3.6% |
Other place names in 51020
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 51020
| ZIP | City | Distance |
|---|---|---|
51053 | Schaller, IA | 6.4 mi |
51025 | Holstein, IA | 7.5 mi |
51431 | Arthur, IA | 12.2 mi |
51445 | Ida Grove, IA | 13.2 mi |
50535 | Early, IA | 13.3 mi |
51002 | Alta, IA | 13.7 mi |
51049 | Quimby, IA | 14.3 mi |
51005 | Aurelia, IA | 14.4 mi |
51018 | Cushing, IA | 14.5 mi |
51458 | Odebolt, IA | 15.8 mi |
Find every ZIP code within 10 miles of 51020 →
Questions about this ZIP code
Where is ZIP code 51020?
51020 is in Galva, Iowa, in Ida County. Its published point location is 42.5150, -95.4102.
What county is 51020 in?
51020 spans 4 counties: Ida County, Sac County, Cherokee County and Buena Vista County. Most of it falls in Ida 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 51020?
Galva uses area code 712, from NANPA's telephone records.
What time zone is 51020 in?
51020 uses America/Chicago.
How many people live in 51020?
About 632 people live in ZIP code 51020, in 231 households, at 11.1 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 51020?
$80,066 a year, against $75,059 across Iowa.
What ZIP codes are near 51020?
The closest are 51053 (6.4 mi), 51025 (7.5 mi), 51431 (12.2 mi), 51445 (13.2 mi) and 50535 (13.3 mi).
Is 51020 a PO Box ZIP code?
51020 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “51020 ZIP Code — Galva, Iowa (Ida County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/51020
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/51020.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.