Walnut is a city in Pottawattamie County, Iowa, United States. The population was 747 at the time of the 2020 census. Walnut is located on Interstate 80 and is famous for its many antique stores. In recent years Walnut has become a regional center of wind turbine electrical generation.

Official town website ↗

From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)

Town numbers

ZIP code51577

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Living in Walnut

Housing in Walnut

$209K▲ 6.2% in a year Typical home value · Zillow

The typical Walnut home is worth about $209,000, up 6.2% in a year, 13% below the Iowa typical home.

Only 1 sale in April 2026, too few for a market read. The typical value is the steadier guide.

Zillow Home Value Index · Redfin Data CenterHousing market →

Work & commute in Walnut

Full picture →

Most working residents leave Walnut for work: only 1% work in town. The top destinations are Avoca (14%), Omaha (13%) and Harlan (9%). Half commute less than 32 miles.

Avoca

14%

Omaha, NE

13%

Harlan

Council Bluffs

1%Work in townlive and work in Walnut 32 miWhere do people commute?the commute map 114Jobs based herea commuter town

Census LEHD 2023 · ACSWork & commute in Walnut →

Health in Walnut

C⁺

Health Grade C+

Healthier than 41% of U.S. towns on seven CDC estimates, and 61% of towns with similar incomes.

Compared with Iowa

2better than IA·9worse

of 32 measures CDC estimates. The other 21 are too close to call.

Conditions 8▼ 4 close Habits all close Care 2▲ 1▼ 4 close Mind all close Everyday needs all close

BetterToo close to callWorse

What stands out

72.2%More adults screened for colon cancerIA 66.6% · better 82.1%More adults treating high blood pressureIA 77.8% · better 8.6%More adults with heart diseaseIA 6.6% · worse

Care nearby

Myrtue Medical CenterHarlan · 12.2 mi · ER · rural critical access

New Visions Homeless ServicesCouncil Bluffs · 36.6 mi · sliding-scale fees

Primary careNo shortage

DentalNo shortage

Mental healthNo shortage

CDC PLACES 2025 · modeled estimates for adults · CDC's estimate for Walnut · CMS · HRSAHealth in Walnut →

Natural hazards in Walnut

Moderate

Expected storm and flood damage is higher than in 57% of U.S. communities.

🌊 Inland flooding🌪️ Tornadoes🧊 Hail

0Does Walnut flood?no paid flood claims on record 7Disasters that paid out herefederal disasters sent FEMA money to Walnut

FEMA National Risk Index December 2025 · OpenFEMANatural hazards in Walnut →

Climate in Walnut

Full climate →

Walnut has cold winters and warm summers. A typical July afternoon reaches 84°, a January night drops to 12°, and about 27 inches of snow falls in a normal winter.

33° / 15°Winter

60° / 38°Spring

83° / 61°Summer

62° / 40°Fall