PlainZIP

Union, ME

Single-footprint Census roll-up for Union, ME: 1 USPS ZIP, population 3,592. 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 UNION-ME · Union, ME 1 ZIPs · 3,592 pop · #11738/25278 · Knox County

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

  • INC-MID $73,536
  • RANK-MID #11738/25278
  • PHOTO-FINISH ≈ Vinalhaven
  • BOOK-ONE 1 ZIP
  • OWN-MID 85% owners
  • POP-VILLAGE 3,592
  • SPREAD-UNK Single-ZIP book
  • HOME-MID $252,300

Nearest income peer: Vinalhaven, ME ( $573 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 Union

Lowest/highest poles plus county-sharing cities nearest Union 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, Union, ME sits among US cities with an above-median household income, on a village-scale population base, across a single-ZIP footprint.

Top 46%
household income vs 25,278 US cities
3,592
city population (Census)
1
USPS ZIP codes covered
$73,536
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.

Above-median income on a short ZIP list (1) - lead code 04862 (3,592 residents). Household income $73,536 is the roll-up; open the ZIP for tenure and commute.

Owner-occupancy sits in a mixed band (84.6%) - check the ZIP page's tenure split before treating Union as a pure owner town.

Within Maine, Lisbon Falls is the closest lower-income city and Greenville Junction the closest higher-income city by average ZIP household income. Their 1 and 1 ZIP footprints are the immediate statewide comparison set for Union.

Population concentration

One ZIP, 04862, is all of Union

There is no split to weigh here: 04862 holds every one of Union's 3,592 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

Dense ZBP book packed into Union's one ZIP

Citywide ZBP: 107 establishments, 561 employees , annual payroll $22,985k (~30 establishments per 1,000 residents) across 1 of 1 ZIPs. Peak business ZIP 04862 (107 units) ; leading NAICS Construction (18) · also Retail trade · Professional, scientific, and technical services .

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ZIP Codes in Union, ME

These ZIP codes sit in Knox County, which covers 19 ZIP codes in all; 1 of them fall in Union. See the Knox County roll-up →

Union sits in the lower half of Knox County on income: Camden, Rockport and Tenants Harbor report more, Rockland, Thomaston and Washington report less. Rockland marks the far end of that range at $56,533, 23% below Union.

ZIP Code Population Median income Establishments Density
04862 3,592 $73,536 107 21
How we build city roll-ups · Guide: reading ZIP code data · BLS wages

Union 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 Union, .