51231 ZIP Code, Archer, IA

51231 is a ZIP code in Archer, Iowa in O'Brien County. It covers 24 square miles of land. The closest ZIP codes are 51245, 51238 and 51248. 562 people live here in 141 households. It is rural, with fewer than 100 people per square mile, and most homes are owner-occupied (94%). Median household income is $108,058, above the Iowa median of $75,059; 72% of households have children under 18.

Quick facts

Key figures

MeasureValue
Residents562
Households141
Median household income$108,058
Income per person$22,575
Median age15.1
Homeowners94.3%
Median home value$189,500
Median rentnot published
Bachelor's degree or higher33.5%
Average commute (minutes)26.1
Households with kids under 1872.3%
Moved in the past year0.7%
Below the poverty line29.7%
Broadband internet92.9%
Speak a non-English language at home1.7%

Household income

% of householdsValue
<$10K2.1%
$10–15K0.0%
$15–25K5.0%
$25–35K0.0%
$35–50K21.3%
$50–75K7.8%
$75–100K2.8%
$100–150K43.3%
$150–200K17.7%
$200K+0.0%

Age

% of all residentsValue
<1038.1%
10–1917.4%
20–241.4%
25–3419.2%
35–449.6%
45–546.0%
55–642.3%
65–744.4%
75+1.4%

Tenure

% of housing unitsValue
Owned, with mortgage55.2%
Owned outright37.8%
Rented5.6%
Vacant1.4%

Type of building

% of housing unitsValue
Detached house99.3%
Townhome0.7%
2–4 units0.0%
5–19 units0.0%
20+ units0.0%
Mobile / other0.0%

Businesses in 51231

6 business establishments with 63 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

See every USPS carrier route in 51231 with residential and business mailbox counts on the route map. Open the EDDM route map.

Nearby ZIP codes

Areas that include 51231

Mail every home in 51231

Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 51231, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 51231 in?
51231 is a Archer, IA mailing address. None of its land lies inside a Census-defined city or community.
What county is 51231 in?
51231 is in O'Brien County.
What is the population of 51231?
About 562 people (±274), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 232.
What is the median household income in 51231?
$108,058 (±$35,526), compared with $75,059 for Iowa as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 51231?
EDDM2GO's stored route library does not include 51231 yet. The EDDM route map loads its carrier routes and mailbox counts when you search the ZIP code.
What ZIP codes are near 51231?
The closest, measured center to center: 51245 (7.3 mi, Primghar), 51238 (7.9 mi, Hospers), 51248 (8 mi, Sanborn), 51201 (8.2 mi, Sheldon), 51022 (10.3 mi, Granville) and 51046 (10.4 mi, Paullina).

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.