21057 ZIP Code
Glen Arm, Maryland
January 10, 2026
| ZIP Code: | 21057 |
| City/Town: | Glen Arm |
| County: | Baltimore |
| State: | Maryland |
| ZIP Type: | Standard |
| Population: | 4,530 |
| Median Household Income: | $163,462 |
| Per Capita Income: | $76,714 |
| Total Housing Units: | 1,721 |
| Median Home Value: | $576,100 |
| Land Area: | 15.9 sq miles
41.2 sq km |
| Water Area: | 0.4 sq miles
1.1 sq km |
| Coordinates: | 39.4487, -76.5125 |
Population Information (21057 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Total Population: | 4,530 | -- | -- |
| Male: | 2,318 | 51.2% | 49.6% |
| Female: | 2,212 | 48.8% | 50.4% |
| Median Age: | 45.5 yrs | -- | 38.5 yrs |
| Under 5 years: | 264 | 5.8% | 5.7% |
| 5 to 9 years: | 359 | 7.9% | 6.0% |
| 10 to 14 years: | 294 | 6.5% | 6.5% |
| 15 to 19 years: | 281 | 6.2% | 6.6% |
| 20 to 24 years: | 169 | 3.7% | 6.7% |
| 25 to 34 years: | 176 | 3.9% | 13.7% |
| 35 to 44 years: | 680 | 15.0% | 12.9% |
| 45 to 54 years: | 583 | 12.9% | 12.4% |
| 55 to 59 years: | 430 | 9.5% | 6.5% |
| 60 to 64 years: | 333 | 7.4% | 6.4% |
| 65 to 74 years: | 467 | 10.3% | 9.7% |
| 75 to 84 years: | 384 | 8.5% | 4.8% |
| 85 years and over: | 110 | 2.4% | 2.0% |
Housing Information (21057 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Median home value: | $576,100 | -- | $281,900 |
| Median rooms: | 8.1 | -- | 5.5 |
| Median rent: | $1,620 / mo. | -- | $1,268 / mo. |
| Total housing units: | 1,721 | -- | -- |
| Occupied housing units: | 1,604 | 93.2% | 38.0% |
| Vacant housing units: | 117 | 6.8% | 4.6% |
| Housing tenure: | -- | -- | -- |
| Owner-occupied: | 1,380 | 86.0% | 64.8% |
| Renter-occupied: | 224 | 14.0% | 35.2% |
Educational Attainment (21057 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Population 25 years and over: | 3,163 | -- | -- |
| Less than 9th grade: | 60 | 1.9% | 4.7% |
| 9th to 12th grade, no diploma: | 161 | 5.1% | 6.1% |
| High school graduate: | 393 | 12.4% | 26.4% |
| Some college, no degree: | 472 | 14.9% | 19.7% |
| Associate degree: | 346 | 10.9% | 8.7% |
| Bachelor's degree: | 950 | 30.0% | 20.9% |
| Graduate or professional degree: | 781 | 24.7% | 13.7% |
| Percent high school graduate or higher: | -- | 93.0% | 89.1% |
| Percent bachelor's degree or higher: | -- | 54.7% | 34.3% |
Income Information (21057 zip code)
| Value | US AvgUS | |
|---|---|---|
| Median household income: | $163,462 / yr. | $75,149 / yr. |
| Mean household income: | $174,107 / yr. | $105,833 / yr. |
| Median family income: | $186,150 / yr. | $92,646 / yr. |
| Per capita income: | $76,714 / yr. | $41,261 / yr. |
Employment (21057 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| In labor force: | 2,299 | -- | 63.5% |
| Employed: | 2,256 | 98.1% | 96.4% |
| Unemployed: | 43 | 1.9% | 5.3% |
| Not in labor force: | 1,282 | -- | -- |
| Class of Worker: | -- | -- | -- |
| Private wage and salary: | 1,748 | 77.5% | 79.7% |
| Government workers: | 371 | 16.4% | 14.2% |
| Self-employed: | 130 | 5.8% | 5.9% |
| Unpaid family workers: | 7 | 0.3% | 0.1% |
Race & Ethnicity (21057 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Race (one race): | -- | -- | -- |
| White: | 4,011 | 88.5% | 61.6% |
| Black or African American: | 212 | 4.7% | 12.4% |
| American Indian/Alaska Native: | 9 | 0.2% | 1.1% |
| Asian: | 99 | 2.2% | 6.0% |
| Native Hawaiian/Pacific Islander: | 0 | 0.0% | 0.2% |
| Some other race: | 58 | 1.3% | 8.4% |
| Two or more races: | 141 | 3.1% | 10.2% |
| Hispanic or Latino (any race): | 142 | 3.1% | 18.7% |
| Mexican: | 321 | 7.1% | 11.2% |
| Puerto Rican: | 21 | 0.5% | 1.8% |
| Cuban: | 196 | 4.3% | 0.7% |
| Other Hispanic or Latino: | 7 | 0.2% | 5.0% |
| Not Hispanic or Latino: | 97 | 2.1% | 81.1% |
Income Distribution (21057 zip code)
| Household Income | Households | Percent% | US AvgUS |
|---|---|---|---|
| Less than $10,000: | 45 | 2.8% | 4.9% |
| $10,000 to $14,999: | 43 | 2.7% | 3.8% |
| $15,000 to $24,999: | 60 | 3.7% | 7.0% |
| $25,000 to $34,999: | 52 | 3.2% | 7.4% |
| $35,000 to $49,999: | 115 | 7.2% | 10.7% |
| $50,000 to $74,999: | 35 | 2.2% | 16.1% |
| $75,000 to $99,999: | 75 | 4.7% | 12.8% |
| $100,000 to $149,999: | 332 | 20.7% | 17.1% |
| $150,000 to $199,999: | 281 | 17.5% | 8.8% |
| $200,000 or more: | 566 | 35.3% | 11.4% |
Commute to Work (21057 zip code)
| Commute Method | Workers | Percent% | US AvgUS |
|---|---|---|---|
| Drove alone: | 1,786 | 79.2% | 67.8% |
| Carpooled: | 88 | 3.9% | 8.7% |
| Public transportation: | 9 | 0.4% | 4.2% |
| Walked: | 6 | 0.3% | 2.5% |
| Other means: | 0 | 0.0% | 0.9% |
| Worked from home: | 359 | 15.9% | 13.8% |
| Mean travel time to work: | 32.0 min | -- | 26.7 min |
Industry (21057 zip code)
| Industry Sector | Workers | Percent% | US AvgUS |
|---|---|---|---|
| Agriculture, forestry, fishing, mining: | 60 | 2.7% | 1.6% |
| Construction: | 196 | 8.7% | 6.9% |
| Manufacturing: | 89 | 3.9% | 10.0% |
| Wholesale trade: | 37 | 1.6% | 2.4% |
| Retail trade: | 107 | 4.7% | 11.0% |
| Transportation, warehousing, utilities: | 92 | 4.1% | 5.8% |
| Information: | 76 | 3.4% | 1.9% |
| Finance, insurance, real estate: | 400 | 17.7% | 6.7% |
| Professional, scientific, management: | 302 | 13.4% | 12.1% |
| Education, health care, social services: | 523 | 23.2% | 23.3% |
| Arts, entertainment, food services: | 71 | 3.1% | 9.0% |
| Other services: | 112 | 5.0% | 4.7% |
| Public administration: | 191 | 8.5% | 4.7% |
Poverty Status (21057 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Poverty Rate: | -- | 1.4% | 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 (21057 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| With health insurance: | 4,341 | 95.8% | 91.3% |
| Private health insurance: | 3,995 | 88.2% | 67.6% |
| Public health coverage: | 1,013 | 22.4% | 35.9% |
| Without health insurance: | 156 | 3.4% | 8.7% |
Benefits & Assistance (21057 zip code)
| Households with: | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Earnings: | 1,234 | 76.9% | 77.4% |
| Social Security income: | 633 | 39.5% | 31.0% |
| Retirement income: | 463 | 28.9% | 21.8% |
| Supplemental Security Income (SSI): | 20 | 1.2% | 4.5% |
| Cash public assistance income: | 0 | 0.0% | 1.8% |
| SNAP (food stamps) benefits: | 24 | 1.5% | 11.4% |
Housing Types (21057 zip code)
| Structure Type | Units | Percent% | US AvgUS |
|---|---|---|---|
| 1-unit, detached: | 1,488 | 86.5% | 61.4% |
| 1-unit, attached: | 66 | 3.8% | 6.1% |
| 2 units: | 0 | 0.0% | 3.4% |
| 3 or 4 units: | 0 | 0.0% | 4.3% |
| 5 to 9 units: | 40 | 2.3% | 4.6% |
| 10 to 19 units: | 20 | 1.2% | 4.3% |
| 20 or more units: | 107 | 6.2% | 9.9% |
| Mobile home: | 0 | 0.0% | 5.8% |
| Boat, RV, van, etc.: | 0 | 0.0% | 0.1% |
Year Structure Built (21057 zip code)
| Year Built | Units | Percent% | US AvgUS |
|---|---|---|---|
| Built 2020 or later: | 0 | 0.0% | 0.6% |
| Built 2010 to 2019: | 124 | 7.2% | 8.2% |
| Built 2000 to 2009: | 28 | 1.6% | 13.5% |
| Built 1990 to 1999: | 125 | 7.3% | 13.2% |
| Built 1980 to 1989: | 298 | 17.3% | 13.2% |
| Built 1970 to 1979: | 332 | 19.3% | 14.6% |
| Built 1960 to 1969: | 202 | 11.7% | 10.2% |
| Built 1950 to 1959: | 229 | 13.3% | 9.9% |
| Built 1940 to 1949: | 40 | 2.3% | 4.6% |
| Built 1939 or earlier: | 343 | 19.9% | 12.0% |
Bedrooms (21057 zip code)
| Number of Bedrooms | Units | Percent% | US AvgUS |
|---|---|---|---|
| No bedroom (studio): | 44 | 2.6% | 2.4% |
| 1 bedroom: | 97 | 5.6% | 3.0% |
| 2 bedrooms: | 119 | 6.9% | 9.1% |
| 3 bedrooms: | 452 | 26.3% | 15.9% |
| 4 bedrooms: | 760 | 44.2% | 18.8% |
| 5 or more bedrooms: | 249 | 14.5% | 17.6% |
Heating Fuel (21057 zip code)
| Fuel Type | Units | Percent% | US AvgUS |
|---|---|---|---|
| Utility gas: | 226 | 14.1% | 47.1% |
| Bottled, tank, or LP gas: | 84 | 5.2% | 4.9% |
| Electricity: | 509 | 31.7% | 40.2% |
| Fuel oil, kerosene, etc.: | 612 | 38.2% | 4.2% |
| Coal or coke: | 0 | 0.0% | 0.1% |
| Wood: | 89 | 5.5% | 1.5% |
| Solar energy: | 0 | 0.0% | 0.1% |
| Other fuel: | 41 | 2.6% | 0.5% |
| No fuel used: | 43 | 2.7% | 0.2% |
Vehicles Available (21057 zip code)
| Vehicles | Households | Percent% | US AvgUS |
|---|---|---|---|
| No vehicle available: | 113 | 7.0% | 8.3% |
| 1 vehicle available: | 179 | 11.2% | 32.6% |
| 2 vehicles available: | 798 | 49.8% | 37.0% |
| 3 or more vehicles available: | 514 | 32.0% | 22.1% |
Home Value Distribution (21057 zip code)
| Value Range | Owner Units | Percent% | US AvgUS |
|---|---|---|---|
| Less than $50,000: | 19 | 1.4% | 5.7% |
| $50,000 to $99,999: | 0 | 0.0% | 7.8% |
| $100,000 to $149,999: | 0 | 0.0% | 9.2% |
| $150,000 to $199,999: | 31 | 2.2% | 10.8% |
| $200,000 to $299,999: | 32 | 2.3% | 19.9% |
| $300,000 to $499,999: | 376 | 27.2% | 24.1% |
| $500,000 to $999,999: | 873 | 63.3% | 17.0% |
| $1,000,000 or more: | 49 | 3.6% | 5.6% |
Housing Costs (21057 zip code)
| Value | US AvgUS | |
|---|---|---|
| Median owner costs (with mortgage): | $3,097 / mo. | $1,828 / mo. |
| Median owner costs (no mortgage): | $871 / mo. | $584 / mo. |
| Median gross rent: | $1,620 / mo. | $1,268 / mo. |
| Average household size (owner-occupied): | 3.04 | 2.53 |
| Average household size (renter-occupied): | 1.35 | 2.38 |
Households (21057 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Total households: | 1,604 | -- | -- |
| Married-couple households: | 1,207 | 75.2% | 47.5% |
| Cohabiting couple households: | 584 | 36.4% | 7.0% |
| Male householder, no spouse: | 145 | 9.0% | 5.4% |
| Female householder, no spouse: | 238 | 14.8% | 12.7% |
| Householder living alone: | 596 | 37.2% | 28.6% |
| 65 years and over living alone: | 644 | 40.1% | 11.8% |
| Average household size: | 2.80 | -- | 2.53 |
| Average family size: | 3.27 | -- | -- |
Marital Status (21057 zip code)
| Population 15 years and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Total: | 1,797 | -- | -- |
| Never married: | 384 | 21.4% | 37.0% |
| Now married: | 1,293 | 72.0% | 49.5% |
| Separated: | 35 | 1.9% | 1.5% |
| Widowed: | 59 | 3.3% | 2.6% |
| Divorced: | 267 | 14.9% | 9.3% |
School Enrollment (21057 zip code)
| Population 3 years and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Enrolled in school: | 1,214 | -- | -- |
| Nursery school, preschool: | 159 | 13.1% | 5.8% |
| Kindergarten: | 77 | 6.3% | 5.0% |
| Elementary school (grades 1-8): | 365 | 30.1% | 40.5% |
| High school (grades 9-12): | 352 | 29.0% | 21.4% |
| College or graduate school: | 261 | 21.5% | 27.3% |
Veterans & Disability (21057 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Civilian population 18 years and over: | 3,420 | -- | -- |
| Veterans: | 114 | 3.3% | 6.3% |
| Civilian noninstitutionalized population: | 4,497 | -- | -- |
| With a disability: | 480 | 10.7% | 13.4% |
| Under 18 with disability: | 80 | 16.7% | 5.8% |
| 18 to 64 with disability: | 130 | 27.1% | 10.4% |
| 65 and over with disability: | 270 | 56.3% | 33.4% |
Mobility (Residence 1 Year Ago) (21057 zip code)
| Population 1 year and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Same house: | 4,013 | 88.6% | 86.9% |
| Different house: | 487 | 10.8% | 13.1% |
| Same county: | 449 | 92.2% | 7.0% |
| Different county: | 38 | 7.8% | 3.2% |
| Different state: | 0 | 0.0% | 2.5% |
| Abroad: | 0 | 0.0% | 0.4% |
Place of Birth (21057 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Native born: | 4,261 | 94.1% | 86.2% |
| Foreign born: | 95 | 2.1% | 13.9% |
| Naturalized citizen: | 269 | 283.2% | 52.7% |
| Not a citizen: | 269 | 283.2% | 47.3% |
| Foreign-born by region: | -- | -- | -- |
| Europe: | 269 | 283.2% | 10.5% |
| Asia: | 79 | 83.2% | 31.3% |
| Africa: | 72 | 75.8% | 5.5% |
| Oceania: | 0 | 0.0% | 0.5% |
| Latin America: | 33 | 34.7% | 50.0% |
| Northern America: | 0 | 0.0% | 2.2% |
Language Spoken at Home (21057 zip code)
| Population 5 years and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Total: | 4,266 | -- | -- |
| English only: | 3,934 | 92.2% | 78.3% |
| Language other than English: | 332 | 7.8% | 21.5% |
| By language: | -- | -- | -- |
| Spanish: | 137 | 3.2% | 13.3% |
| Other Indo-European languages: | 98 | 2.3% | 3.5% |
| Asian/Pacific Island languages: | 1 | 0.0% | 3.5% |
| Other languages: | 96 | 2.3% | 1.0% |
Computers & Internet (21057 zip code)
| Households | Percent% | US AvgUS | |
|---|---|---|---|
| Households with a computer: | 1,604 | 100.0% | 93.1% |
| Households with broadband internet: | 1,500 | 93.5% | 89.4% |
Glen Arm, MD21057