PlainZIP

Port Costa, CA

Single-footprint Census roll-up for Port Costa, CA: 1 USPS ZIP, population 198. 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 PORT-COSTA-CA · Port Costa, CA 1 ZIPs · 198 pop · #24075/25278 · Contra Costa County

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

  • INC-LOW $38,929
  • RANK-BOTTOM #24075/25278
  • BELOW-PEER under San Pablo
  • BOOK-ONE 1 ZIP
  • OWN-LOW 56% owners
  • POP-VILLAGE 198
  • SPREAD-UNK Single-ZIP book
  • HOME-HIGH $600,000

Nearest income peer: San Pablo, CA (+ $47,105 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 Port Costa

Lowest/highest poles plus county-sharing cities nearest Port Costa 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, Port Costa, CA sits among US cities with one of the lowest household incomes among US cities, on a village-scale population base, across a single-ZIP footprint.

5th pct
household income vs 25,278 US cities
198
city population (Census)
1
USPS ZIP codes covered
$38,929
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.

Lower-income footing on only 1 ZIP ($38,929 average) · poverty 0.0%. The primary code (94569) carries the ACS household fields that matter.

Owner-occupancy is comparatively low (56.2%) for this income tier, rent - may matter more than the home-value average.

Within California, Thermal is the closest lower-income city and Bridgeville the closest higher-income city by average ZIP household income. Their 1 and 1 ZIP footprints are the immediate statewide comparison set for Port Costa.

Population concentration

One ZIP, 94569, is all of Port Costa

There is no split to weigh here: 94569 holds every one of Port Costa's 198 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 Port Costa's one ZIP

Citywide ZBP: 3 establishments, 51 employees , annual payroll $1,810k (~15 establishments per 1,000 residents) across 1 of 1 ZIPs. Peak business ZIP 94569 (3 units) .

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ZIP Codes in Port Costa, CA

These ZIP codes sit in Contra Costa County, which covers 43 ZIP codes in all; 1 of them fall in Port Costa. See the Contra Costa County roll-up →

Every one of the 12 cities sharing Contra Costa County reports a higher average ZIP median income than Port Costa, Concord, Antioch and Pittsburg among them. That gap is the county's income spread, not a measure of the housing or commute picture below. Danville marks the far end of that range at $237,549, 510% above Port Costa.

ZIP Code Population Median income Establishments Density
94569 198 $38,929 3 32
How we build city roll-ups · Guide: reading ZIP code data · BLS wages

Port Costa 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 Port Costa, .