PlainZIP

Underwood, IA

Single-footprint Census roll-up for Underwood, IA: 1 USPS ZIP, population 2,110. Open the primary ZIP for household income, housing tenure, and commute from ACS 2023 5-Year Estimates.

U.S. Census Bureau, SimpleMaps US ZIP Code Database, delivery-area ZIP coverage

ACS city ledger plate

Sheet UNDERWOOD-IA · Underwood, IA 1 ZIPs · 2,110 pop · #3019/25278 · Pottawattamie County

INC-TOP · RANK-TOP · PHOTO-FINISH · BOOK-ONE · OWN-HIGH · POP-VILLAGE · SPREAD-UNK · HOME-MID

  • INC-TOP $110,476
  • RANK-TOP #3019/25278
  • PHOTO-FINISH ≈ Treynor
  • BOOK-ONE 1 ZIP
  • OWN-HIGH 89% owners
  • POP-VILLAGE 2,110
  • SPREAD-UNK Single-ZIP book
  • HOME-MID $305,400

Nearest income peer: Treynor, IA (+ $1,639 income $)

Instrument codes from this city’s ACS household income, national rank, county-peer gap, ZIP book, owner tenure, population scale, intra-city income spread, and home-value band, not a moving recommendation.

Income neighbourhood around Underwood

Lowest/highest poles plus county-sharing cities nearest Underwood on average ZIP median household income. Full ladder: /cities.

median HH income

What this shows County-sharing peers only, not the full US city board. Open a near peer when the gap is small; open the poles when the mosaic is wide.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2026-08-25

National city placement

According to ACS 5-Year Estimates, Underwood, IA sits among US cities with an upper-quartile household income, on a village-scale population base, across a single-ZIP footprint.

Top 12%
household income vs 25,278 US cities
2,110
city population (Census)
1
USPS ZIP codes covered
$110,476
avg ZIP median income

Income percentile ranks this city's average ZIP median household income against 25,278 US cities with ACS income on at least one ZIP. Scale and ZIP-spread words come from Census population and USPS ZIP coverage.

High-income footprint on only 1 ZIP: the city page and the ZIP page nearly coincide. Headline income $110,476 and home value $305,400 should be read as near-neighborhood numbers ; bachelor's attainment averages 31.1%.

Owner-occupancy here runs high (89.2%) - tenure is stable enough that the ZIP detail's owner share is the right next click, not a renter-heavy compare.

Within Iowa, Center Junction is the closest lower-income city and Dickens the closest higher-income city by average ZIP household income. Their 1 and 1 ZIP footprints are the immediate statewide comparison set for Underwood.

Population concentration

One ZIP, 51576, is all of Underwood

There is no split to weigh here: 51576 holds every one of Underwood's 2,110 ACS residents. City-level and ZIP-level numbers on this site are the same number twice, check the ZIP page for the income/tenure/commute breakdown.

Census ZBP business roll-up

Mid-pack ZBP load on Underwood's one ZIP

Citywide ZBP: 39 establishments, 423 employees , annual payroll $22,903k (~18 establishments per 1,000 residents) across 1 of 1 ZIPs. Peak business ZIP 51576 (39 units) ; leading NAICS Construction (7) · also Transportation and warehousing · Accommodation and food services .

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ZIP Codes in Underwood, IA

These ZIP codes sit in Pottawattamie County, which covers 16 ZIP codes in all; 1 of them fall in Underwood. See the Pottawattamie County roll-up →

Underwood sits in the upper half of Pottawattamie County on income: Council Bluffs, Carter Lake and Oakland report less, while Honey Creek reports more. Council Bluffs marks the far end of that range at $69,427, 37% below Underwood.

ZIP Code Population Median income Establishments Density
51576 2,110 $110,476 39 16
How we build city roll-ups · Guide: reading ZIP code data · BLS wages

Underwood roll-ups here are for informational purposes only and do not constitute financial or relocation advice. ACS and Census ZBP figures are estimates; confirm the current table against Census before a money or move decision involving Underwood, .