PlainZIP

Portsmouth, IA

Single-footprint Census roll-up for Portsmouth, IA: 1 USPS ZIP, population 501. 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 PORTSMOUTH-IA · Portsmouth, IA 1 ZIPs · 501 pop · #3953/25278 · Shelby County

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

  • INC-HIGH $103,257
  • RANK-TOP #3953/25278
  • ABOVE-PEER over Panama
  • BOOK-ONE 1 ZIP
  • OWN-LOW 64% owners
  • POP-VILLAGE 501
  • SPREAD-UNK Single-ZIP book
  • HOME-LOW $182,100

Nearest income peer: Panama, IA ( $22,007 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 Portsmouth

Lowest/highest poles plus county-sharing cities nearest Portsmouth 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, Portsmouth, 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
501
city population (Census)
1
USPS ZIP codes covered
$103,257
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 $103,257 and home value $182,100 should be read as near-neighborhood numbers ; bachelor's attainment averages 18.5%.

Owner-occupancy is comparatively low (64.0%) for this income tier, rent $833 may matter more than the home-value average.

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

Population concentration

Portsmouth reads through its lone ZIP, 51565

501 ACS residents, one ZIP: 51565 is not the leading code inside Portsmouth, it is the only one on file. Treat the ZIP page as the primary source for anything below the city-wide total.

Census ZBP business roll-up

Dense ZBP book packed into Portsmouth's one ZIP

Citywide ZBP: 13 establishments, 36 employees , annual payroll $2,136k (~26 establishments per 1,000 residents) across 1 of 1 ZIPs. Peak business ZIP 51565 (13 units) ; leading NAICS Construction (3) · also Wholesale trade .

View your shortlist →

ZIP Codes in Portsmouth, IA

These ZIP codes sit in Shelby County, which covers 9 ZIP codes in all; 1 of them fall in Portsmouth. See the Shelby County roll-up →

No other city sharing Shelby County reports a higher average ZIP median income than Portsmouth. Harlan, Elk Horn and Earling sit below it, so a household comparing this county on income alone starts here. Elk Horn marks the far end of that range at $59,199, 43% below Portsmouth.

ZIP Code Population Median income Establishments Density
51565 501 $103,257 13 4
How we build city roll-ups · Guide: reading ZIP code data · BLS wages

Portsmouth 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 Portsmouth, .