Fremont County, IA ZIP Codes

11 ZIP codes cover all or part of Fremont County, Iowa. The Census Bureau counts 6,514 residents in the county, with a median household income of $71,621 and a median home value of $154,400. Median household income ranges from $62,143 in 51601 to $82,200 in 51652. Its largest communities include Sidney, Hamburg, Tabor, Farragut and Randolph.

Fremont County (Census county figures)

MeasureCensus figure
Residents6,514
Households2,823
Median household income$71,621
Median home value$154,400
Median age46.8
Median rent$746

All 11 ZIP codes together

MeasureValue
Residents (sum of ZIP codes)12,660
Households (sum of ZIP codes)5,442
Median household income, range across ZIP codes$62,143 (51601) to $82,200 (51652)
Household-weighted average of ZIP medians (an approximation, not a true median)$66,711
Homeowners71.1%
Households with kids under 1825.0%
Moved in the past year12.2%
Carrier routes in EDDM2GO's route library8 routes, 1,220 homes (5 of 11 ZIP codes)

Top facts

Every ZIP code in Fremont County

ZIPMailing cityResidentsHouseholdsMedian incomeHome valueHomeownersWith kidsNew moversCarrier routesMailboxesWhy listed
51601Shenandoah5,6292,522$62,143$124,20060.0%24.0%15.9%——37% of its land
51652Sidney1,569628$82,200$134,80081.2%26.0%10.3%2355100% of its land
51653Tabor1,446558$71,319$230,20078.5%32.8%8.7%——75% of its land
51640Hamburg1,381588$65,385$122,90079.1%22.4%6.2%263782% of its land
51639Farragut919401$84,688$157,30074.3%30.4%12.8%——100% of its land
51645Imogene419125$217,898—98.4%34.4%12.9%——57% of its land
51649Randolph346128$58,333$101,40082.0%31.3%2.0%——100% of its land
51654Thurman325119$90,188$231,80077.3%33.6%15.4%2140100% of its land
51648Percival257152$59,766$164,00080.9%12.5%12.8%1101100% of its land
51650Riverton197120$49,063$54,20089.2%2.5%6.1%139100% of its land
51647Northboro172101$23,633—92.1%8.9%0.6%——25% of its land

A ZIP code is listed for Fremont County when at least 10% of its land is in the county, when it holds at least 10% of the county's land, or when the county is its main county. Totals add up whole ZIP codes, including parts that cross the county line; the Census county figures above do not.

Cities and communities

Price a mailing to Fremont County ZIP codes

EDDM guides

Pick carrier routes on the EDDM route map

Frequently asked questions

What ZIP codes are in Fremont County, IA?
51601, 51652, 51653, 51640, 51639, 51645, 51649, 51654, 51648, 51650 and 51647. Some cross the county line; the table shows each ZIP's share of land in the county.
What is the population of Fremont County?
6,514 residents in 2,823 households (ACS 5-year estimates, 2020–2024).
What is the median household income in Fremont County?
$71,621 for the county as a whole. Its ZIP codes range from $62,143 (51601) to $82,200 (51652).
Which Fremont County ZIP code has the highest median household income?
51652, at $82,200, among ZIP codes with at least 1,000 residents.
How many carrier routes and mailboxes are in Fremont County?
For the 5 of 11 ZIP codes in EDDM2GO's stored route library: 8 carrier routes reaching 1,220 residential and 52 business mailboxes. The route map loads the rest when you search them.

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