21157 ZIP Code
Westminster, Maryland
December 15, 2025
| ZIP Code: | 21157 |
| City/Town: | Westminster |
| County: | Carroll |
| State: | Maryland |
| ZIP Type: | Standard |
| Population: | 39,816 |
| Median Household Income: | $96,406 |
| Per Capita Income: | $46,421 |
| Total Housing Units: | 15,334 |
| Median Home Value: | $375,700 |
| Land Area: | 77.7 sq miles
201.2 sq km |
| Water Area: | 0.2 sq miles
0.4 sq km |
| Coordinates: | 39.5486, -76.9836 |
Population Information (21157 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Total Population: | 39,816 | -- | -- |
| Male: | 19,549 | 49.1% | 49.6% |
| Female: | 20,267 | 50.9% | 50.4% |
| Median Age: | 41.1 yrs | -- | 38.5 yrs |
| Under 5 years: | 1,629 | 4.1% | 5.7% |
| 5 to 9 years: | 1,926 | 4.8% | 6.0% |
| 10 to 14 years: | 2,884 | 7.2% | 6.5% |
| 15 to 19 years: | 3,085 | 7.7% | 6.6% |
| 20 to 24 years: | 3,162 | 7.9% | 6.7% |
| 25 to 34 years: | 4,327 | 10.9% | 13.7% |
| 35 to 44 years: | 4,777 | 12.0% | 12.9% |
| 45 to 54 years: | 5,114 | 12.8% | 12.4% |
| 55 to 59 years: | 2,876 | 7.2% | 6.5% |
| 60 to 64 years: | 2,708 | 6.8% | 6.4% |
| 65 to 74 years: | 4,280 | 10.7% | 9.7% |
| 75 to 84 years: | 1,868 | 4.7% | 4.8% |
| 85 years and over: | 1,180 | 3.0% | 2.0% |
Housing Information (21157 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Median home value: | $375,700 | -- | $281,900 |
| Median rooms: | 6.8 | -- | 5.5 |
| Median rent: | $1,147 / mo. | -- | $1,268 / mo. |
| Total housing units: | 15,334 | -- | -- |
| Occupied housing units: | 14,627 | 95.4% | 38.0% |
| Vacant housing units: | 707 | 4.6% | 4.6% |
| Housing tenure: | -- | -- | -- |
| Owner-occupied: | 10,848 | 74.2% | 64.8% |
| Renter-occupied: | 3,779 | 25.8% | 35.2% |
Educational Attainment (21157 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Population 25 years and over: | 27,130 | -- | -- |
| Less than 9th grade: | 630 | 2.3% | 4.7% |
| 9th to 12th grade, no diploma: | 1,556 | 5.7% | 6.1% |
| High school graduate: | 8,213 | 30.3% | 26.4% |
| Some college, no degree: | 4,983 | 18.4% | 19.7% |
| Associate degree: | 1,997 | 7.4% | 8.7% |
| Bachelor's degree: | 5,991 | 22.1% | 20.9% |
| Graduate or professional degree: | 3,760 | 13.9% | 13.7% |
| Percent high school graduate or higher: | -- | 91.9% | 89.1% |
| Percent bachelor's degree or higher: | -- | 35.9% | 34.3% |
Income Information (21157 zip code)
| Value | US AvgUS | |
|---|---|---|
| Median household income: | $96,406 / yr. | $75,149 / yr. |
| Mean household income: | $115,838 / yr. | $105,833 / yr. |
| Median family income: | $119,213 / yr. | $92,646 / yr. |
| Per capita income: | $46,421 / yr. | $41,261 / yr. |
Employment (21157 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| In labor force: | 21,362 | -- | 63.5% |
| Employed: | 20,529 | 96.4% | 96.4% |
| Unemployed: | 773 | 3.6% | 5.3% |
| Not in labor force: | 11,600 | -- | -- |
| Class of Worker: | -- | -- | -- |
| Private wage and salary: | 15,932 | 77.6% | 79.7% |
| Government workers: | 3,589 | 17.5% | 14.2% |
| Self-employed: | 968 | 4.7% | 5.9% |
| Unpaid family workers: | 40 | 0.2% | 0.1% |
Race & Ethnicity (21157 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Race (one race): | -- | -- | -- |
| White: | 35,549 | 89.3% | 61.6% |
| Black or African American: | 1,538 | 3.9% | 12.4% |
| American Indian/Alaska Native: | 75 | 0.2% | 1.1% |
| Asian: | 329 | 0.8% | 6.0% |
| Native Hawaiian/Pacific Islander: | 3 | 0.0% | 0.2% |
| Some other race: | 810 | 2.0% | 8.4% |
| Two or more races: | 1,512 | 3.8% | 10.2% |
| Hispanic or Latino (any race): | 1,766 | 4.4% | 18.7% |
| Mexican: | 2,044 | 5.1% | 11.2% |
| Puerto Rican: | 423 | 1.1% | 1.8% |
| Cuban: | 294 | 0.7% | 0.7% |
| Other Hispanic or Latino: | 248 | 0.6% | 5.0% |
| Not Hispanic or Latino: | 1,079 | 2.7% | 81.1% |
Income Distribution (21157 zip code)
| Household Income | Households | Percent% | US AvgUS |
|---|---|---|---|
| Less than $10,000: | 482 | 3.3% | 4.9% |
| $10,000 to $14,999: | 480 | 3.3% | 3.8% |
| $15,000 to $24,999: | 746 | 5.1% | 7.0% |
| $25,000 to $34,999: | 1,027 | 7.0% | 7.4% |
| $35,000 to $49,999: | 1,228 | 8.4% | 10.7% |
| $50,000 to $74,999: | 2,019 | 13.8% | 16.1% |
| $75,000 to $99,999: | 1,562 | 10.7% | 12.8% |
| $100,000 to $149,999: | 2,834 | 19.4% | 17.1% |
| $150,000 to $199,999: | 2,136 | 14.6% | 8.8% |
| $200,000 or more: | 2,113 | 14.4% | 11.4% |
Commute to Work (21157 zip code)
| Commute Method | Workers | Percent% | US AvgUS |
|---|---|---|---|
| Drove alone: | 15,423 | 75.1% | 67.8% |
| Carpooled: | 1,740 | 8.5% | 8.7% |
| Public transportation: | 69 | 0.3% | 4.2% |
| Walked: | 429 | 2.1% | 2.5% |
| Other means: | 145 | 0.7% | 0.9% |
| Worked from home: | 2,462 | 12.0% | 13.8% |
| Mean travel time to work: | 31.3 min | -- | 26.7 min |
Industry (21157 zip code)
| Industry Sector | Workers | Percent% | US AvgUS |
|---|---|---|---|
| Agriculture, forestry, fishing, mining: | 159 | 0.8% | 1.6% |
| Construction: | 2,142 | 10.4% | 6.9% |
| Manufacturing: | 965 | 4.7% | 10.0% |
| Wholesale trade: | 624 | 3.0% | 2.4% |
| Retail trade: | 2,323 | 11.3% | 11.0% |
| Transportation, warehousing, utilities: | 802 | 3.9% | 5.8% |
| Information: | 494 | 2.4% | 1.9% |
| Finance, insurance, real estate: | 1,608 | 7.8% | 6.7% |
| Professional, scientific, management: | 2,180 | 10.6% | 12.1% |
| Education, health care, social services: | 5,060 | 24.6% | 23.3% |
| Arts, entertainment, food services: | 1,476 | 7.2% | 9.0% |
| Other services: | 1,102 | 5.4% | 4.7% |
| Public administration: | 1,594 | 7.8% | 4.7% |
Poverty Status (21157 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Poverty Rate: | -- | 7.7% | 8.8% |
| All people below poverty level: | -- | -- | -- |
| Under 18 years: | -- | -- | 16.3% |
| 18 to 64 years: | -- | -- | 11.0% |
| 65 years and over: | -- | -- | 10.3% |
Health Insurance (21157 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| With health insurance: | 37,870 | 95.1% | 91.3% |
| Private health insurance: | 31,648 | 79.5% | 67.6% |
| Public health coverage: | 12,627 | 31.7% | 35.9% |
| Without health insurance: | 1,487 | 3.7% | 8.7% |
Benefits & Assistance (21157 zip code)
| Households with: | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Earnings: | 11,122 | 76.0% | 77.4% |
| Social Security income: | 5,152 | 35.2% | 31.0% |
| Retirement income: | 3,893 | 26.6% | 21.8% |
| Supplemental Security Income (SSI): | 605 | 4.1% | 4.5% |
| Cash public assistance income: | 181 | 1.2% | 1.8% |
| SNAP (food stamps) benefits: | 1,413 | 9.7% | 11.4% |
Housing Types (21157 zip code)
| Structure Type | Units | Percent% | US AvgUS |
|---|---|---|---|
| 1-unit, detached: | 10,877 | 70.9% | 61.4% |
| 1-unit, attached: | 1,556 | 10.1% | 6.1% |
| 2 units: | 384 | 2.5% | 3.4% |
| 3 or 4 units: | 491 | 3.2% | 4.3% |
| 5 to 9 units: | 534 | 3.5% | 4.6% |
| 10 to 19 units: | 822 | 5.4% | 4.3% |
| 20 or more units: | 637 | 4.2% | 9.9% |
| Mobile home: | 33 | 0.2% | 5.8% |
| Boat, RV, van, etc.: | 0 | 0.0% | 0.1% |
Year Structure Built (21157 zip code)
| Year Built | Units | Percent% | US AvgUS |
|---|---|---|---|
| Built 2020 or later: | 11 | 0.1% | 0.6% |
| Built 2010 to 2019: | 566 | 3.7% | 8.2% |
| Built 2000 to 2009: | 1,685 | 11.0% | 13.5% |
| Built 1990 to 1999: | 2,367 | 15.4% | 13.2% |
| Built 1980 to 1989: | 2,210 | 14.4% | 13.2% |
| Built 1970 to 1979: | 2,684 | 17.5% | 14.6% |
| Built 1960 to 1969: | 1,941 | 12.7% | 10.2% |
| Built 1950 to 1959: | 1,030 | 6.7% | 9.9% |
| Built 1940 to 1949: | 525 | 3.4% | 4.6% |
| Built 1939 or earlier: | 2,315 | 15.1% | 12.0% |
Bedrooms (21157 zip code)
| Number of Bedrooms | Units | Percent% | US AvgUS |
|---|---|---|---|
| No bedroom (studio): | 53 | 0.3% | 2.4% |
| 1 bedroom: | 1,668 | 10.9% | 3.0% |
| 2 bedrooms: | 2,538 | 16.6% | 9.1% |
| 3 bedrooms: | 6,228 | 40.6% | 15.9% |
| 4 bedrooms: | 3,898 | 25.4% | 18.8% |
| 5 or more bedrooms: | 949 | 6.2% | 17.6% |
Heating Fuel (21157 zip code)
| Fuel Type | Units | Percent% | US AvgUS |
|---|---|---|---|
| Utility gas: | 2,783 | 19.0% | 47.1% |
| Bottled, tank, or LP gas: | 707 | 4.8% | 4.9% |
| Electricity: | 7,167 | 49.0% | 40.2% |
| Fuel oil, kerosene, etc.: | 3,119 | 21.3% | 4.2% |
| Coal or coke: | 11 | 0.1% | 0.1% |
| Wood: | 397 | 2.7% | 1.5% |
| Solar energy: | 12 | 0.1% | 0.1% |
| Other fuel: | 225 | 1.5% | 0.5% |
| No fuel used: | 206 | 1.4% | 0.2% |
Vehicles Available (21157 zip code)
| Vehicles | Households | Percent% | US AvgUS |
|---|---|---|---|
| No vehicle available: | 1,197 | 8.2% | 8.3% |
| 1 vehicle available: | 3,225 | 22.0% | 32.6% |
| 2 vehicles available: | 5,511 | 37.7% | 37.0% |
| 3 or more vehicles available: | 4,694 | 32.1% | 22.1% |
Home Value Distribution (21157 zip code)
| Value Range | Owner Units | Percent% | US AvgUS |
|---|---|---|---|
| Less than $50,000: | 117 | 1.1% | 5.7% |
| $50,000 to $99,999: | 18 | 0.2% | 7.8% |
| $100,000 to $149,999: | 246 | 2.3% | 9.2% |
| $150,000 to $199,999: | 580 | 5.3% | 10.8% |
| $200,000 to $299,999: | 2,217 | 20.4% | 19.9% |
| $300,000 to $499,999: | 5,295 | 48.8% | 24.1% |
| $500,000 to $999,999: | 2,058 | 19.0% | 17.0% |
| $1,000,000 or more: | 317 | 2.9% | 5.6% |
Housing Costs (21157 zip code)
| Value | US AvgUS | |
|---|---|---|
| Median owner costs (with mortgage): | $2,042 / mo. | $1,828 / mo. |
| Median owner costs (no mortgage): | $664 / mo. | $584 / mo. |
| Median gross rent: | $1,147 / mo. | $1,268 / mo. |
| Average household size (owner-occupied): | 2.79 | 2.53 |
| Average household size (renter-occupied): | 2.00 | 2.38 |
Households (21157 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Total households: | 14,627 | -- | -- |
| Married-couple households: | 8,255 | 56.4% | 47.5% |
| Cohabiting couple households: | 3,037 | 20.8% | 7.0% |
| Male householder, no spouse: | 1,705 | 11.7% | 5.4% |
| Female householder, no spouse: | 3,870 | 26.5% | 12.7% |
| Householder living alone: | 4,182 | 28.6% | 28.6% |
| 65 years and over living alone: | 5,091 | 34.8% | 11.8% |
| Average household size: | 2.58 | -- | 2.53 |
| Average family size: | 3.06 | -- | -- |
Marital Status (21157 zip code)
| Population 15 years and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Total: | 16,029 | -- | -- |
| Never married: | 5,354 | 33.4% | 37.0% |
| Now married: | 8,928 | 55.7% | 49.5% |
| Separated: | 503 | 3.1% | 1.5% |
| Widowed: | 1,098 | 6.9% | 2.6% |
| Divorced: | 4,659 | 29.1% | 9.3% |
School Enrollment (21157 zip code)
| Population 3 years and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Enrolled in school: | 10,470 | -- | -- |
| Nursery school, preschool: | 612 | 5.8% | 5.8% |
| Kindergarten: | 352 | 3.4% | 5.0% |
| Elementary school (grades 1-8): | 4,092 | 39.1% | 40.5% |
| High school (grades 9-12): | 1,884 | 18.0% | 21.4% |
| College or graduate school: | 3,530 | 33.7% | 27.3% |
Veterans & Disability (21157 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Civilian population 18 years and over: | 31,925 | -- | -- |
| Veterans: | 2,201 | 6.9% | 6.3% |
| Civilian noninstitutionalized population: | 39,357 | -- | -- |
| With a disability: | 5,852 | 14.9% | 13.4% |
| Under 18 with disability: | 541 | 9.2% | 5.8% |
| 18 to 64 with disability: | 2,851 | 48.7% | 10.4% |
| 65 and over with disability: | 2,460 | 42.0% | 33.4% |
Mobility (Residence 1 Year Ago) (21157 zip code)
| Population 1 year and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Same house: | 35,831 | 90.0% | 86.9% |
| Different house: | 3,766 | 9.5% | 13.1% |
| Same county: | 1,964 | 52.2% | 7.0% |
| Different county: | 1,759 | 46.7% | 3.2% |
| Different state: | 720 | 19.1% | 2.5% |
| Abroad: | 43 | 1.1% | 0.4% |
Place of Birth (21157 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Native born: | 38,018 | 95.5% | 86.2% |
| Foreign born: | 400 | 1.0% | 13.9% |
| Naturalized citizen: | 1,798 | 449.5% | 52.7% |
| Not a citizen: | 1,798 | 449.5% | 47.3% |
| Foreign-born by region: | -- | -- | -- |
| Europe: | 1,798 | 449.5% | 10.5% |
| Asia: | 319 | 79.8% | 31.3% |
| Africa: | 114 | 28.5% | 5.5% |
| Oceania: | 0 | 0.0% | 0.5% |
| Latin America: | 923 | 230.8% | 50.0% |
| Northern America: | 38 | 9.5% | 2.2% |
Language Spoken at Home (21157 zip code)
| Population 5 years and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Total: | 38,187 | -- | -- |
| English only: | 35,727 | 93.6% | 78.3% |
| Language other than English: | 2,460 | 6.4% | 21.5% |
| By language: | -- | -- | -- |
| Spanish: | 1,396 | 3.7% | 13.3% |
| Other Indo-European languages: | 744 | 1.9% | 3.5% |
| Asian/Pacific Island languages: | 287 | 0.8% | 3.5% |
| Other languages: | 33 | 0.1% | 1.0% |
Computers & Internet (21157 zip code)
| Households | Percent% | US AvgUS | |
|---|---|---|---|
| Households with a computer: | 14,627 | 100.0% | 93.1% |
| Households with broadband internet: | 13,214 | 90.3% | 89.4% |
Westminster, MD21157