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ZIP code

21157

Westminster, MD

STANDARD

21157 covers Westminster in Carroll County, with 40,191 people in the ACS 2023 estimate.

Figures are for the Census ZIP Code Tabulation Area (ZCTA), which is not the same as a USPS ZIP code. A PO Box or unique ZIP may have no ZCTA and no demographics. Methodology

ACS 2023 population

40,191

Median household income

$102,835

Median home value

$394,100

U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: ZCTA 21157. Methodology

ZIP code map of 21157

Census ZCTA boundary for ZIP 21157 in Westminster, Maryland
Census ZCTA boundary for ZIP 21157 in Westminster, Maryland. A ZCTA is not the same as a USPS ZIP code. Boundaries: U.S. Census Bureau. Methodology · Data sources
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About ZIP code 21157

Type

STANDARD

City

Westminster

County

Carroll County

Timezone

America/New_York

Area codes

410, 443, 667

Land area

77.7 sq mi

Water area

0.15 sq mi

Households

15,466

Median gross rent

$1,236

More enterprise fields

Timezone
America/New_York
Area Codes
410, 443, 667
World Region
NA
Country
US

Commercial ZIP directory · not ACS

Commercial ZIP directory population_count for ZCTA 21157. Not ACS. Methodology

People in 21157

Race

  • White32,420
  • Black or African American1,809
  • American Indian or Alaska Native113
  • Asian765
  • Native Hawaiian and Pacific Islander18
  • Other race1,025
  • Two or more races2,434

Hispanic or Latino (any race): 2,385

Age

  • Under 104,061
  • 10 to 194,858
  • 20 to 294,974
  • 30 to 394,608
  • 40 to 494,128
  • 50 to 595,739
  • 60 to 695,212
  • 70 to 793,276
  • 80 and older1,728

Income and housing in 21157

Poverty rate

7.5%

Median earnings

$50,254

Median household income

$102,835

Median home value

$394,100

Median gross rent

$1,236

Education

  • High school graduate92.6%
  • Bachelor's degree37.2%
  • Graduate degree14.4%

Places covering 21157

Cities and places — Population overlap

Share of this ZIP/ZCTA’s population located within each place, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.

ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology

Counties — Population overlap

Share of this ZIP/ZCTA’s population located within each county, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.

ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology

73.4% of this ZIP is outside city limits (a real overlap row, not missing data).

Population history for 21157

IRS populationACS population
43,40621,703020052023

Hover the chart or read the table below (Year | ACS | IRS).

Population history. Year | ACS population | IRS population. ACS and IRS are separate series. Blank cells mean that source did not publish a count for the year.
YearACS populationIRS population
200534,291
200632,682
200734,760
200833,232
200933,812
201033,655
201137,02033,731
201237,99033,760
201337,65034,120
201437,09433,700
201536,73233,880
201637,35833,660
201737,19133,530
201836,98533,560
201937,74933,640
202038,71433,970
202139,97834,090
202239,81634,800
202340,191

ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.

ZIP codes near 21157

12 nearest ZIP centroids (any distance)

  1. 21048Finksburg4.6 miPop 10,002 · Income $122,801
  2. 21776New Windsor6.5 miPop 5,905 · Income $111,923
  3. 21158Westminster7.8 miPop 22,404 · Income $108,795
  4. 21074Hampstead9.2 miPop 15,070 · Income $101,462
  5. 21155Upperco9.6 miPop 3,124 · Income $124,219
  6. 21784Sykesville10.2 miPop 37,813 · Income $141,228
  7. 21071Glyndon10.3 miPop 355 · Income $138,456
  8. 21136Reisterstown10.6 miPop 33,778 · Income $106,559
  9. 21791Union Bridge11.0 miPop 4,734 · Income $90,460
  10. 21102Manchester12.3 miPop 12,176 · Income $119,535
  11. 21023Butler13.1 miPop 83 · Income $81,438
  12. 21787Taneytown13.4 miPop 11,549 · Income $88,212

ZIP centroids within 2 miles

No other ZIP codes within 2 miles of 21157, measured by Census internal-point centroids. Try a wider radius.

ZIPs within 2 miles of this place

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21157 Westminster, MD

Looking up ZIP codes within 2 miles of 21157 Westminster, MD, measured by centroid distance.

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ZIP code 21157 FAQ

What city is ZIP code 21157 in?
21157 is in Westminster, MD.
What county is 21157 in?
21157 is in Carroll County.
What is the median household income in 21157?
The median household income in 21157 is $102,835.
Which ZIP codes are near 21157?
Use the radius tool on this page to list ZIP codes within a chosen distance of 21157.