PlainZIP

Smithland, IA

Single-footprint Census roll-up for Smithland, IA: 1 USPS ZIP, population 478. 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 SMITHLAND-IA · Smithland, IA 1 ZIPs · 478 pop · #3945/25278 · Woodbury County

INC-HIGH · RANK-TOP · BELOW-PEER · BOOK-ONE · OWN-HIGH · POP-VILLAGE · SPREAD-UNK · HOME-LOW

  • INC-HIGH $103,313
  • RANK-TOP #3945/25278
  • BELOW-PEER under Salix
  • BOOK-ONE 1 ZIP
  • OWN-HIGH 93% owners
  • POP-VILLAGE 478
  • SPREAD-UNK Single-ZIP book
  • HOME-LOW $157,400

Nearest income peer: Salix, IA (+ $5,437 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 Smithland

Lowest/highest poles plus county-sharing cities nearest Smithland 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, Smithland, IA sits among US cities with an upper-quartile household income, on a village-scale population base, across a single-ZIP footprint.

Top 16%
household income vs 25,278 US cities
478
city population (Census)
1
USPS ZIP codes covered
$103,313
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 $103,313 and home value $157,400 should be read as near-neighborhood numbers ; bachelor's attainment averages 22.2%.

Owner-occupancy here runs high (92.5%) - tenure is stable enough that the ZIP detail's owner share is the right next click, not a renter-heavy compare.

Within Iowa, Portsmouth is the closest lower-income city and Fruitland the closest higher-income city by average ZIP household income. Their 1 and 1 ZIP footprints are the immediate statewide comparison set for Smithland.

Population concentration

One ZIP, 51056, is all of Smithland

There is no split to weigh here: 51056 holds every one of Smithland's 478 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 Smithland's one ZIP

Citywide ZBP: 8 establishments, 42 employees , annual payroll $1,870k (~17 establishments per 1,000 residents) across 1 of 1 ZIPs. Peak business ZIP 51056 (8 units) ; leading NAICS Retail trade (3) .

View your shortlist →

ZIP Codes in Smithland, IA

These ZIP codes sit in Woodbury County, which covers 22 ZIP codes in all; 1 of them fall in Smithland. See the Woodbury County roll-up →

Smithland sits in the upper half of Woodbury County on income: Sioux City, Lawton and Correctionville report less, while Sergeant Bluff, Moville and Salix report more. Anthon marks the far end of that range at $43,882, 58% below Smithland.

ZIP Code Population Median income Establishments Density
51056 478 $103,313 8 5
How we build city roll-ups · Guide: reading ZIP code data · BLS wages

Smithland 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 Smithland, .