21158 ZIP Code
Westminster, Maryland
December 15, 2025
| ZIP Code: | 21158 |
| City/Town: | Westminster |
| County: | Carroll |
| State: | Maryland |
| ZIP Type: | Standard |
| Population: | 23,011 |
| Median Household Income: | $109,076 |
| Per Capita Income: | $56,890 |
| Total Housing Units: | 8,860 |
| Median Home Value: | $358,500 |
| Land Area: | 73.3 sq miles
189.9 sq km |
| Water Area: | 0.2 sq miles
0.6 sq km |
| Coordinates: | 39.6537, -77.0351 |
Population Information (21158 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Total Population: | 23,011 | -- | -- |
| Male: | 11,727 | 51.0% | 49.6% |
| Female: | 11,284 | 49.0% | 50.4% |
| Median Age: | 42.1 yrs | -- | 38.5 yrs |
| Under 5 years: | 1,213 | 5.3% | 5.7% |
| 5 to 9 years: | 1,356 | 5.9% | 6.0% |
| 10 to 14 years: | 1,476 | 6.4% | 6.5% |
| 15 to 19 years: | 1,574 | 6.8% | 6.6% |
| 20 to 24 years: | 1,199 | 5.2% | 6.7% |
| 25 to 34 years: | 2,522 | 11.0% | 13.7% |
| 35 to 44 years: | 2,907 | 12.6% | 12.9% |
| 45 to 54 years: | 3,374 | 14.7% | 12.4% |
| 55 to 59 years: | 1,215 | 5.3% | 6.5% |
| 60 to 64 years: | 1,767 | 7.7% | 6.4% |
| 65 to 74 years: | 2,514 | 10.9% | 9.7% |
| 75 to 84 years: | 1,226 | 5.3% | 4.8% |
| 85 years and over: | 668 | 2.9% | 2.0% |
Housing Information (21158 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Median home value: | $358,500 | -- | $281,900 |
| Median rooms: | 7.0 | -- | 5.5 |
| Median rent: | $1,697 / mo. | -- | $1,268 / mo. |
| Total housing units: | 8,860 | -- | -- |
| Occupied housing units: | 8,548 | 96.5% | 38.0% |
| Vacant housing units: | 312 | 3.5% | 4.6% |
| Housing tenure: | -- | -- | -- |
| Owner-occupied: | 6,708 | 78.5% | 64.8% |
| Renter-occupied: | 1,840 | 21.5% | 35.2% |
Educational Attainment (21158 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Population 25 years and over: | 16,193 | -- | -- |
| Less than 9th grade: | 146 | 0.9% | 4.7% |
| 9th to 12th grade, no diploma: | 842 | 5.2% | 6.1% |
| High school graduate: | 4,757 | 29.4% | 26.4% |
| Some college, no degree: | 3,226 | 19.9% | 19.7% |
| Associate degree: | 1,557 | 9.6% | 8.7% |
| Bachelor's degree: | 3,791 | 23.4% | 20.9% |
| Graduate or professional degree: | 1,874 | 11.6% | 13.7% |
| Percent high school graduate or higher: | -- | 93.9% | 89.1% |
| Percent bachelor's degree or higher: | -- | 35.0% | 34.3% |
Income Information (21158 zip code)
| Value | US AvgUS | |
|---|---|---|
| Median household income: | $109,076 / yr. | $75,149 / yr. |
| Mean household income: | $127,877 / yr. | $105,833 / yr. |
| Median family income: | $122,361 / yr. | $92,646 / yr. |
| Per capita income: | $56,890 / yr. | $41,261 / yr. |
Employment (21158 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| In labor force: | 12,282 | -- | 63.5% |
| Employed: | 11,916 | 97.6% | 96.4% |
| Unemployed: | 295 | 2.4% | 5.3% |
| Not in labor force: | 6,404 | -- | -- |
| Class of Worker: | -- | -- | -- |
| Private wage and salary: | 8,894 | 74.6% | 79.7% |
| Government workers: | 2,071 | 17.4% | 14.2% |
| Self-employed: | 943 | 7.9% | 5.9% |
| Unpaid family workers: | 8 | 0.1% | 0.1% |
Race & Ethnicity (21158 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Race (one race): | -- | -- | -- |
| White: | 20,751 | 90.2% | 61.6% |
| Black or African American: | 411 | 1.8% | 12.4% |
| American Indian/Alaska Native: | 0 | 0.0% | 1.1% |
| Asian: | 541 | 2.4% | 6.0% |
| Native Hawaiian/Pacific Islander: | 0 | 0.0% | 0.2% |
| Some other race: | 233 | 1.0% | 8.4% |
| Two or more races: | 1,075 | 4.7% | 10.2% |
| Hispanic or Latino (any race): | 468 | 2.0% | 18.7% |
| Mexican: | 750 | 3.3% | 11.2% |
| Puerto Rican: | 108 | 0.5% | 1.8% |
| Cuban: | 168 | 0.7% | 0.7% |
| Other Hispanic or Latino: | 0 | 0.0% | 5.0% |
| Not Hispanic or Latino: | 474 | 2.1% | 81.1% |
Income Distribution (21158 zip code)
| Household Income | Households | Percent% | US AvgUS |
|---|---|---|---|
| Less than $10,000: | 139 | 1.6% | 4.9% |
| $10,000 to $14,999: | 85 | 1.0% | 3.8% |
| $15,000 to $24,999: | 406 | 4.7% | 7.0% |
| $25,000 to $34,999: | 263 | 3.1% | 7.4% |
| $35,000 to $49,999: | 575 | 6.7% | 10.7% |
| $50,000 to $74,999: | 1,339 | 15.7% | 16.1% |
| $75,000 to $99,999: | 1,094 | 12.8% | 12.8% |
| $100,000 to $149,999: | 1,921 | 22.5% | 17.1% |
| $150,000 to $199,999: | 1,354 | 15.8% | 8.8% |
| $200,000 or more: | 1,372 | 16.1% | 11.4% |
Commute to Work (21158 zip code)
| Commute Method | Workers | Percent% | US AvgUS |
|---|---|---|---|
| Drove alone: | 9,315 | 78.2% | 67.8% |
| Carpooled: | 689 | 5.8% | 8.7% |
| Public transportation: | 0 | 0.0% | 4.2% |
| Walked: | 45 | 0.4% | 2.5% |
| Other means: | 38 | 0.3% | 0.9% |
| Worked from home: | 1,698 | 14.2% | 13.8% |
| Mean travel time to work: | 36.6 min | -- | 26.7 min |
Industry (21158 zip code)
| Industry Sector | Workers | Percent% | US AvgUS |
|---|---|---|---|
| Agriculture, forestry, fishing, mining: | 193 | 1.6% | 1.6% |
| Construction: | 1,322 | 11.1% | 6.9% |
| Manufacturing: | 873 | 7.3% | 10.0% |
| Wholesale trade: | 240 | 2.0% | 2.4% |
| Retail trade: | 1,267 | 10.6% | 11.0% |
| Transportation, warehousing, utilities: | 501 | 4.2% | 5.8% |
| Information: | 153 | 1.3% | 1.9% |
| Finance, insurance, real estate: | 945 | 7.9% | 6.7% |
| Professional, scientific, management: | 1,211 | 10.2% | 12.1% |
| Education, health care, social services: | 3,011 | 25.3% | 23.3% |
| Arts, entertainment, food services: | 799 | 6.7% | 9.0% |
| Other services: | 678 | 5.7% | 4.7% |
| Public administration: | 723 | 6.1% | 4.7% |
Poverty Status (21158 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Poverty Rate: | -- | 4.1% | 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 (21158 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| With health insurance: | 22,212 | 96.5% | 91.3% |
| Private health insurance: | 19,079 | 82.9% | 67.6% |
| Public health coverage: | 6,671 | 29.0% | 35.9% |
| Without health insurance: | 600 | 2.6% | 8.7% |
Benefits & Assistance (21158 zip code)
| Households with: | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Earnings: | 6,924 | 81.0% | 77.4% |
| Social Security income: | 2,903 | 34.0% | 31.0% |
| Retirement income: | 2,699 | 31.6% | 21.8% |
| Supplemental Security Income (SSI): | 199 | 2.3% | 4.5% |
| Cash public assistance income: | 48 | 0.6% | 1.8% |
| SNAP (food stamps) benefits: | 389 | 4.6% | 11.4% |
Housing Types (21158 zip code)
| Structure Type | Units | Percent% | US AvgUS |
|---|---|---|---|
| 1-unit, detached: | 6,380 | 72.0% | 61.4% |
| 1-unit, attached: | 1,404 | 15.8% | 6.1% |
| 2 units: | 145 | 1.6% | 3.4% |
| 3 or 4 units: | 63 | 0.7% | 4.3% |
| 5 to 9 units: | 115 | 1.3% | 4.6% |
| 10 to 19 units: | 304 | 3.4% | 4.3% |
| 20 or more units: | 449 | 5.1% | 9.9% |
| Mobile home: | 0 | 0.0% | 5.8% |
| Boat, RV, van, etc.: | 0 | 0.0% | 0.1% |
Year Structure Built (21158 zip code)
| Year Built | Units | Percent% | US AvgUS |
|---|---|---|---|
| Built 2020 or later: | 0 | 0.0% | 0.6% |
| Built 2010 to 2019: | 397 | 4.5% | 8.2% |
| Built 2000 to 2009: | 1,175 | 13.3% | 13.5% |
| Built 1990 to 1999: | 1,995 | 22.5% | 13.2% |
| Built 1980 to 1989: | 2,002 | 22.6% | 13.2% |
| Built 1970 to 1979: | 1,307 | 14.8% | 14.6% |
| Built 1960 to 1969: | 466 | 5.3% | 10.2% |
| Built 1950 to 1959: | 401 | 4.5% | 9.9% |
| Built 1940 to 1949: | 129 | 1.5% | 4.6% |
| Built 1939 or earlier: | 988 | 11.2% | 12.0% |
Bedrooms (21158 zip code)
| Number of Bedrooms | Units | Percent% | US AvgUS |
|---|---|---|---|
| No bedroom (studio): | 55 | 0.6% | 2.4% |
| 1 bedroom: | 283 | 3.2% | 3.0% |
| 2 bedrooms: | 1,414 | 16.0% | 9.1% |
| 3 bedrooms: | 3,971 | 44.8% | 15.9% |
| 4 bedrooms: | 2,627 | 29.7% | 18.8% |
| 5 or more bedrooms: | 510 | 5.8% | 17.6% |
Heating Fuel (21158 zip code)
| Fuel Type | Units | Percent% | US AvgUS |
|---|---|---|---|
| Utility gas: | 1,433 | 16.8% | 47.1% |
| Bottled, tank, or LP gas: | 542 | 6.3% | 4.9% |
| Electricity: | 4,363 | 51.0% | 40.2% |
| Fuel oil, kerosene, etc.: | 1,224 | 14.3% | 4.2% |
| Coal or coke: | 16 | 0.2% | 0.1% |
| Wood: | 785 | 9.2% | 1.5% |
| Solar energy: | 99 | 1.2% | 0.1% |
| Other fuel: | 37 | 0.4% | 0.5% |
| No fuel used: | 49 | 0.6% | 0.2% |
Vehicles Available (21158 zip code)
| Vehicles | Households | Percent% | US AvgUS |
|---|---|---|---|
| No vehicle available: | 278 | 3.3% | 8.3% |
| 1 vehicle available: | 1,912 | 22.4% | 32.6% |
| 2 vehicles available: | 3,564 | 41.7% | 37.0% |
| 3 or more vehicles available: | 2,794 | 32.7% | 22.1% |
Home Value Distribution (21158 zip code)
| Value Range | Owner Units | Percent% | US AvgUS |
|---|---|---|---|
| Less than $50,000: | 180 | 2.7% | 5.7% |
| $50,000 to $99,999: | 0 | 0.0% | 7.8% |
| $100,000 to $149,999: | 109 | 1.6% | 9.2% |
| $150,000 to $199,999: | 477 | 7.1% | 10.8% |
| $200,000 to $299,999: | 1,525 | 22.7% | 19.9% |
| $300,000 to $499,999: | 3,014 | 44.9% | 24.1% |
| $500,000 to $999,999: | 1,339 | 20.0% | 17.0% |
| $1,000,000 or more: | 64 | 1.0% | 5.6% |
Housing Costs (21158 zip code)
| Value | US AvgUS | |
|---|---|---|
| Median owner costs (with mortgage): | $2,177 / mo. | $1,828 / mo. |
| Median owner costs (no mortgage): | $664 / mo. | $584 / mo. |
| Median gross rent: | $1,697 / mo. | $1,268 / mo. |
| Average household size (owner-occupied): | 2.81 | 2.53 |
| Average household size (renter-occupied): | 2.19 | 2.38 |
Households (21158 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Total households: | 8,548 | -- | -- |
| Married-couple households: | 5,201 | 60.8% | 47.5% |
| Cohabiting couple households: | 2,237 | 26.2% | 7.0% |
| Male householder, no spouse: | 1,189 | 13.9% | 5.4% |
| Female householder, no spouse: | 1,449 | 17.0% | 12.7% |
| Householder living alone: | 2,935 | 34.3% | 28.6% |
| 65 years and over living alone: | 2,940 | 34.4% | 11.8% |
| Average household size: | 2.68 | -- | 2.53 |
| Average family size: | 3.08 | -- | -- |
Marital Status (21158 zip code)
| Population 15 years and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Total: | 9,735 | -- | -- |
| Never married: | 2,823 | 29.0% | 37.0% |
| Now married: | 5,783 | 59.4% | 49.5% |
| Separated: | 435 | 4.5% | 1.5% |
| Widowed: | 583 | 6.0% | 2.6% |
| Divorced: | 2,170 | 22.3% | 9.3% |
School Enrollment (21158 zip code)
| Population 3 years and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Enrolled in school: | 5,426 | -- | -- |
| Nursery school, preschool: | 352 | 6.5% | 5.8% |
| Kindergarten: | 272 | 5.0% | 5.0% |
| Elementary school (grades 1-8): | 2,153 | 39.7% | 40.5% |
| High school (grades 9-12): | 1,404 | 25.9% | 21.4% |
| College or graduate school: | 1,245 | 22.9% | 27.3% |
Veterans & Disability (21158 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Civilian population 18 years and over: | 17,869 | -- | -- |
| Veterans: | 1,375 | 7.7% | 6.3% |
| Civilian noninstitutionalized population: | 22,812 | -- | -- |
| With a disability: | 3,390 | 14.9% | 13.4% |
| Under 18 with disability: | 312 | 9.2% | 5.8% |
| 18 to 64 with disability: | 1,691 | 49.9% | 10.4% |
| 65 and over with disability: | 1,387 | 40.9% | 33.4% |
Mobility (Residence 1 Year Ago) (21158 zip code)
| Population 1 year and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Same house: | 21,143 | 91.9% | 86.9% |
| Different house: | 1,670 | 7.3% | 13.1% |
| Same county: | 720 | 43.1% | 7.0% |
| Different county: | 950 | 56.9% | 3.2% |
| Different state: | 284 | 17.0% | 2.5% |
| Abroad: | 0 | 0.0% | 0.4% |
Place of Birth (21158 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Native born: | 21,964 | 95.5% | 86.2% |
| Foreign born: | 492 | 2.1% | 13.9% |
| Naturalized citizen: | 1,047 | 212.8% | 52.7% |
| Not a citizen: | 1,047 | 212.8% | 47.3% |
| Foreign-born by region: | -- | -- | -- |
| Europe: | 1,047 | 212.8% | 10.5% |
| Asia: | 275 | 55.9% | 31.3% |
| Africa: | 79 | 16.1% | 5.5% |
| Oceania: | 34 | 6.9% | 0.5% |
| Latin America: | 276 | 56.1% | 50.0% |
| Northern America: | 48 | 9.8% | 2.2% |
Language Spoken at Home (21158 zip code)
| Population 5 years and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Total: | 21,798 | -- | -- |
| English only: | 20,703 | 95.0% | 78.3% |
| Language other than English: | 1,095 | 5.0% | 21.5% |
| By language: | -- | -- | -- |
| Spanish: | 442 | 2.0% | 13.3% |
| Other Indo-European languages: | 432 | 2.0% | 3.5% |
| Asian/Pacific Island languages: | 177 | 0.8% | 3.5% |
| Other languages: | 44 | 0.2% | 1.0% |
Computers & Internet (21158 zip code)
| Households | Percent% | US AvgUS | |
|---|---|---|---|
| Households with a computer: | 8,548 | 100.0% | 93.1% |
| Households with broadband internet: | 8,041 | 94.1% | 89.4% |
Westminster, MD21158