PlainZIP

Westminster, MD

Single-footprint Census roll-up for Westminster, MD: 2 USPS ZIPs, population 57,154. 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 WESTMINSTER-MD · Westminster, MD 2 ZIPs · 57,154 pop · #3396/25278 · Carroll County

INC-HIGH · RANK-TOP · PHOTO-FINISH · BOOK-FEW · OWN-MID · POP-SMALL · SPREAD-TIGHT · HOME-HIGH

  • INC-HIGH $107,397
  • RANK-TOP #3396/25278
  • PHOTO-FINISH ≈ Hampstead
  • BOOK-FEW 2 ZIPs
  • OWN-MID 78% owners
  • POP-SMALL 57,154
  • SPREAD-TIGHT 21157→21158
  • HOME-HIGH $404,400

Nearest income peer: Hampstead, MD (+ $1,139 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 Westminster

Lowest/highest poles plus county-sharing cities nearest Westminster 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, Westminster, MD sits among US cities with an upper-quartile household income, on a small-city population base, across a handful of delivery areas.

Top 13%
household income vs 25,278 US cities
57,154
city population (Census)
2
USPS ZIP codes covered
$107,397
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 2 ZIPs: the city page and the ZIP page nearly coincide. Headline income $107,397 and home value $404,400 should be read as near-neighborhood numbers ; bachelor's attainment averages 37.0%.

Owner-occupancy sits in a mixed band (78.0%) - check the ZIP page's tenure split before treating Westminster as a pure owner town.

Within Maryland, Belcamp is the closest lower-income city and Chester the closest higher-income city by average ZIP household income. Their 1 and 1 ZIP footprints are the immediate statewide comparison set for Westminster.

Within-city ZIP comparison

Where the ZIP codes inside Westminster differ

The published income range is comparatively compact across the ZIPs in Westminster: $104,966 in ZIP 21157 to $109,827 in 21158. The city average is therefore a more representative summary here, though each ZIP page still carries its own housing and demographic record.

Income high-to-low ratio
1.0×

21157 to 21158

Home-value high-to-low ratio
1.1×

21158 to 21157

Poverty-rate spread
0.5 points

21158 to 21157

Derived from the published ACS 2023 ZIP-level records shown on this site. A high-to-low ratio compares the highest and lowest available ZIP values; it is not a score or forecast.

Population concentration

Lead ZIP 21157 skews compact Westminster

In this 2-ZIP cluster, 21157 covers about 65% of Westminster's 57,154 residents. City averages lean toward that lead; open a thinner sibling ZIP for the contrast the mean hides.

Census ZBP business roll-up

Employer-heavy short list in Westminster

Citywide ZBP: 1,585 establishments, 22,884 employees , annual payroll $1,187,967k (~28 establishments per 1,000 residents) across 2 of 2 ZIPs. Peak business ZIP 21157 (1,303 units) ; leading NAICS Health care and social assistance (244) · also Construction · Professional, scientific, and technical services .

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ZIP Codes in Westminster, MD

These ZIP codes sit in Carroll County, which covers 10 ZIP codes in all; 2 of them fall in Westminster. See the Carroll County roll-up →

Westminster sits in the lower half of Carroll County on income: Sykesville, Manchester and Finksburg report more, Taneytown and Union Bridge report less. Marriottsville marks the far end of that range at $191,804, 79% above Westminster.

Side-by-side: Compare 21157 vs 21158 →

ZIP Code Population Median income Establishments Density
21157 36,920 $104,966 1,303 186
21158 20,234 $109,827 282 105
How we build city roll-ups · Guide: reading ZIP code data · BLS wages

Westminster 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 Westminster, .