21231 ZIP Code
Baltimore, Maryland
December 16, 2025
| ZIP Code: | 21231 |
| City/Town: | Baltimore |
| County: | Baltimore (city) |
| State: | Maryland |
| ZIP Type: | Standard |
| Population: | 14,780 |
| Median Household Income: | $88,091 |
| Per Capita Income: | $69,952 |
| Total Housing Units: | 9,205 |
| Median Home Value: | $330,600 |
| Land Area: | 0.9 sq miles
2.2 sq km |
| Water Area: | 0.1 sq miles
0.2 sq km |
| Coordinates: | 39.2885, -76.5920 |
Population Information (21231 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Total Population: | 14,780 | -- | -- |
| Male: | 7,427 | 50.3% | 49.6% |
| Female: | 7,353 | 49.7% | 50.4% |
| Median Age: | 32.8 yrs | -- | 38.5 yrs |
| Under 5 years: | 750 | 5.1% | 5.7% |
| 5 to 9 years: | 446 | 3.0% | 6.0% |
| 10 to 14 years: | 546 | 3.7% | 6.5% |
| 15 to 19 years: | 378 | 2.6% | 6.6% |
| 20 to 24 years: | 1,027 | 6.9% | 6.7% |
| 25 to 34 years: | 4,995 | 33.8% | 13.7% |
| 35 to 44 years: | 2,268 | 15.3% | 12.9% |
| 45 to 54 years: | 1,568 | 10.6% | 12.4% |
| 55 to 59 years: | 668 | 4.5% | 6.5% |
| 60 to 64 years: | 665 | 4.5% | 6.4% |
| 65 to 74 years: | 1,076 | 7.3% | 9.7% |
| 75 to 84 years: | 252 | 1.7% | 4.8% |
| 85 years and over: | 141 | 1.0% | 2.0% |
Housing Information (21231 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Median home value: | $330,600 | -- | $281,900 |
| Median rooms: | 4.4 | -- | 5.5 |
| Median rent: | $1,637 / mo. | -- | $1,268 / mo. |
| Total housing units: | 9,205 | -- | -- |
| Occupied housing units: | 7,818 | 84.9% | 38.0% |
| Vacant housing units: | 1,387 | 15.1% | 4.6% |
| Housing tenure: | -- | -- | -- |
| Owner-occupied: | 2,734 | 35.0% | 64.8% |
| Renter-occupied: | 5,084 | 65.0% | 35.2% |
Educational Attainment (21231 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Population 25 years and over: | 11,633 | -- | -- |
| Less than 9th grade: | 234 | 2.0% | 4.7% |
| 9th to 12th grade, no diploma: | 522 | 4.5% | 6.1% |
| High school graduate: | 1,734 | 14.9% | 26.4% |
| Some college, no degree: | 1,233 | 10.6% | 19.7% |
| Associate degree: | 288 | 2.5% | 8.7% |
| Bachelor's degree: | 4,046 | 34.8% | 20.9% |
| Graduate or professional degree: | 3,576 | 30.7% | 13.7% |
| Percent high school graduate or higher: | -- | 93.5% | 89.1% |
| Percent bachelor's degree or higher: | -- | 65.5% | 34.3% |
Income Information (21231 zip code)
| Value | US AvgUS | |
|---|---|---|
| Median household income: | $88,091 / yr. | $75,149 / yr. |
| Mean household income: | $115,116 / yr. | $105,833 / yr. |
| Median family income: | $112,667 / yr. | $92,646 / yr. |
| Per capita income: | $69,952 / yr. | $41,261 / yr. |
Employment (21231 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| In labor force: | 9,641 | -- | 63.5% |
| Employed: | 9,215 | 96.0% | 96.4% |
| Unemployed: | 388 | 4.0% | 5.3% |
| Not in labor force: | 3,208 | -- | -- |
| Class of Worker: | -- | -- | -- |
| Private wage and salary: | 7,668 | 83.2% | 79.7% |
| Government workers: | 1,305 | 14.2% | 14.2% |
| Self-employed: | 175 | 1.9% | 5.9% |
| Unpaid family workers: | 67 | 0.7% | 0.1% |
Race & Ethnicity (21231 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Race (one race): | -- | -- | -- |
| White: | 8,876 | 60.1% | 61.6% |
| Black or African American: | 3,849 | 26.0% | 12.4% |
| American Indian/Alaska Native: | 53 | 0.4% | 1.1% |
| Asian: | 924 | 6.3% | 6.0% |
| Native Hawaiian/Pacific Islander: | 0 | 0.0% | 0.2% |
| Some other race: | 294 | 2.0% | 8.4% |
| Two or more races: | 784 | 5.3% | 10.2% |
| Hispanic or Latino (any race): | 591 | 4.0% | 18.7% |
| Mexican: | 1,063 | 7.2% | 11.2% |
| Puerto Rican: | 444 | 3.0% | 1.8% |
| Cuban: | 183 | 1.2% | 0.7% |
| Other Hispanic or Latino: | 30 | 0.2% | 5.0% |
| Not Hispanic or Latino: | 406 | 2.7% | 81.1% |
Income Distribution (21231 zip code)
| Household Income | Households | Percent% | US AvgUS |
|---|---|---|---|
| Less than $10,000: | 756 | 9.7% | 4.9% |
| $10,000 to $14,999: | 270 | 3.5% | 3.8% |
| $15,000 to $24,999: | 368 | 4.7% | 7.0% |
| $25,000 to $34,999: | 390 | 5.0% | 7.4% |
| $35,000 to $49,999: | 645 | 8.3% | 10.7% |
| $50,000 to $74,999: | 1,130 | 14.5% | 16.1% |
| $75,000 to $99,999: | 735 | 9.4% | 12.8% |
| $100,000 to $149,999: | 1,379 | 17.6% | 17.1% |
| $150,000 to $199,999: | 855 | 10.9% | 8.8% |
| $200,000 or more: | 1,290 | 16.5% | 11.4% |
Commute to Work (21231 zip code)
| Commute Method | Workers | Percent% | US AvgUS |
|---|---|---|---|
| Drove alone: | 4,202 | 45.6% | 67.8% |
| Carpooled: | 566 | 6.1% | 8.7% |
| Public transportation: | 355 | 3.9% | 4.2% |
| Walked: | 1,613 | 17.5% | 2.5% |
| Other means: | 342 | 3.7% | 0.9% |
| Worked from home: | 2,099 | 22.8% | 13.8% |
| Mean travel time to work: | 25.6 min | -- | 26.7 min |
Industry (21231 zip code)
| Industry Sector | Workers | Percent% | US AvgUS |
|---|---|---|---|
| Agriculture, forestry, fishing, mining: | 17 | 0.2% | 1.6% |
| Construction: | 244 | 2.6% | 6.9% |
| Manufacturing: | 600 | 6.5% | 10.0% |
| Wholesale trade: | 17 | 0.2% | 2.4% |
| Retail trade: | 351 | 3.8% | 11.0% |
| Transportation, warehousing, utilities: | 193 | 2.1% | 5.8% |
| Information: | 198 | 2.1% | 1.9% |
| Finance, insurance, real estate: | 1,061 | 11.5% | 6.7% |
| Professional, scientific, management: | 1,792 | 19.4% | 12.1% |
| Education, health care, social services: | 3,433 | 37.3% | 23.3% |
| Arts, entertainment, food services: | 529 | 5.7% | 9.0% |
| Other services: | 289 | 3.1% | 4.7% |
| Public administration: | 491 | 5.3% | 4.7% |
Poverty Status (21231 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Poverty Rate: | -- | 19.2% | 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 (21231 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| With health insurance: | 14,304 | 96.8% | 91.3% |
| Private health insurance: | 10,894 | 73.7% | 67.6% |
| Public health coverage: | 4,501 | 30.5% | 35.9% |
| Without health insurance: | 420 | 2.8% | 8.7% |
Benefits & Assistance (21231 zip code)
| Households with: | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Earnings: | 6,347 | 81.2% | 77.4% |
| Social Security income: | 1,241 | 15.9% | 31.0% |
| Retirement income: | 815 | 10.4% | 21.8% |
| Supplemental Security Income (SSI): | 407 | 5.2% | 4.5% |
| Cash public assistance income: | 294 | 3.8% | 1.8% |
| SNAP (food stamps) benefits: | 1,200 | 15.3% | 11.4% |
Housing Types (21231 zip code)
| Structure Type | Units | Percent% | US AvgUS |
|---|---|---|---|
| 1-unit, detached: | 273 | 3.0% | 61.4% |
| 1-unit, attached: | 4,700 | 51.1% | 6.1% |
| 2 units: | 687 | 7.5% | 3.4% |
| 3 or 4 units: | 549 | 6.0% | 4.3% |
| 5 to 9 units: | 337 | 3.7% | 4.6% |
| 10 to 19 units: | 339 | 3.7% | 4.3% |
| 20 or more units: | 2,306 | 25.1% | 9.9% |
| Mobile home: | 14 | 0.2% | 5.8% |
| Boat, RV, van, etc.: | 0 | 0.0% | 0.1% |
Year Structure Built (21231 zip code)
| Year Built | Units | Percent% | US AvgUS |
|---|---|---|---|
| Built 2020 or later: | 108 | 1.2% | 0.6% |
| Built 2010 to 2019: | 1,232 | 13.4% | 8.2% |
| Built 2000 to 2009: | 832 | 9.0% | 13.5% |
| Built 1990 to 1999: | 357 | 3.9% | 13.2% |
| Built 1980 to 1989: | 469 | 5.1% | 13.2% |
| Built 1970 to 1979: | 370 | 4.0% | 14.6% |
| Built 1960 to 1969: | 408 | 4.4% | 10.2% |
| Built 1950 to 1959: | 480 | 5.2% | 9.9% |
| Built 1940 to 1949: | 324 | 3.5% | 4.6% |
| Built 1939 or earlier: | 4,625 | 50.2% | 12.0% |
Bedrooms (21231 zip code)
| Number of Bedrooms | Units | Percent% | US AvgUS |
|---|---|---|---|
| No bedroom (studio): | 450 | 4.9% | 2.4% |
| 1 bedroom: | 2,561 | 27.8% | 3.0% |
| 2 bedrooms: | 3,689 | 40.1% | 9.1% |
| 3 bedrooms: | 1,995 | 21.7% | 15.9% |
| 4 bedrooms: | 409 | 4.4% | 18.8% |
| 5 or more bedrooms: | 101 | 1.1% | 17.6% |
Heating Fuel (21231 zip code)
| Fuel Type | Units | Percent% | US AvgUS |
|---|---|---|---|
| Utility gas: | 4,290 | 54.9% | 47.1% |
| Bottled, tank, or LP gas: | 80 | 1.0% | 4.9% |
| Electricity: | 3,226 | 41.3% | 40.2% |
| Fuel oil, kerosene, etc.: | 110 | 1.4% | 4.2% |
| Coal or coke: | 0 | 0.0% | 0.1% |
| Wood: | 0 | 0.0% | 1.5% |
| Solar energy: | 7 | 0.1% | 0.1% |
| Other fuel: | 46 | 0.6% | 0.5% |
| No fuel used: | 59 | 0.8% | 0.2% |
Vehicles Available (21231 zip code)
| Vehicles | Households | Percent% | US AvgUS |
|---|---|---|---|
| No vehicle available: | 1,758 | 22.5% | 8.3% |
| 1 vehicle available: | 3,968 | 50.8% | 32.6% |
| 2 vehicles available: | 1,798 | 23.0% | 37.0% |
| 3 or more vehicles available: | 294 | 3.8% | 22.1% |
Home Value Distribution (21231 zip code)
| Value Range | Owner Units | Percent% | US AvgUS |
|---|---|---|---|
| Less than $50,000: | 47 | 1.7% | 5.7% |
| $50,000 to $99,999: | 38 | 1.4% | 7.8% |
| $100,000 to $149,999: | 71 | 2.6% | 9.2% |
| $150,000 to $199,999: | 185 | 6.8% | 10.8% |
| $200,000 to $299,999: | 797 | 29.2% | 19.9% |
| $300,000 to $499,999: | 1,109 | 40.6% | 24.1% |
| $500,000 to $999,999: | 404 | 14.8% | 17.0% |
| $1,000,000 or more: | 83 | 3.0% | 5.6% |
Housing Costs (21231 zip code)
| Value | US AvgUS | |
|---|---|---|
| Median owner costs (with mortgage): | $2,309 / mo. | $1,828 / mo. |
| Median owner costs (no mortgage): | $776 / mo. | $584 / mo. |
| Median gross rent: | $1,637 / mo. | $1,268 / mo. |
| Average household size (owner-occupied): | 2.01 | 2.53 |
| Average household size (renter-occupied): | 1.80 | 2.38 |
Households (21231 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Total households: | 7,818 | -- | -- |
| Married-couple households: | 1,864 | 23.8% | 47.5% |
| Cohabiting couple households: | 467 | 6.0% | 7.0% |
| Male householder, no spouse: | 2,473 | 31.6% | 5.4% |
| Female householder, no spouse: | 2,674 | 34.2% | 12.7% |
| Householder living alone: | 1,072 | 13.7% | 28.6% |
| 65 years and over living alone: | 1,219 | 15.6% | 11.8% |
| Average household size: | 1.87 | -- | 2.53 |
| Average family size: | 2.66 | -- | -- |
Marital Status (21231 zip code)
| Population 15 years and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Total: | 6,604 | -- | -- |
| Never married: | 3,851 | 58.3% | 37.0% |
| Now married: | 1,886 | 28.6% | 49.5% |
| Separated: | 47 | 0.7% | 1.5% |
| Widowed: | 609 | 9.2% | 2.6% |
| Divorced: | 3,505 | 53.1% | 9.3% |
School Enrollment (21231 zip code)
| Population 3 years and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Enrolled in school: | 3,019 | -- | -- |
| Nursery school, preschool: | 155 | 5.1% | 5.8% |
| Kindergarten: | 99 | 3.3% | 5.0% |
| Elementary school (grades 1-8): | 865 | 28.7% | 40.5% |
| High school (grades 9-12): | 326 | 10.8% | 21.4% |
| College or graduate school: | 1,574 | 52.1% | 27.3% |
Veterans & Disability (21231 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Civilian population 18 years and over: | 12,718 | -- | -- |
| Veterans: | 547 | 4.3% | 6.3% |
| Civilian noninstitutionalized population: | 14,724 | -- | -- |
| With a disability: | 1,545 | 10.5% | 13.4% |
| Under 18 with disability: | 40 | 2.6% | 5.8% |
| 18 to 64 with disability: | 1,083 | 70.1% | 10.4% |
| 65 and over with disability: | 422 | 27.3% | 33.4% |
Mobility (Residence 1 Year Ago) (21231 zip code)
| Population 1 year and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Same house: | 11,143 | 75.4% | 86.9% |
| Different house: | 3,522 | 23.8% | 13.1% |
| Same county: | 1,329 | 37.7% | 7.0% |
| Different county: | 2,055 | 58.3% | 3.2% |
| Different state: | 1,267 | 36.0% | 2.5% |
| Abroad: | 138 | 3.9% | 0.4% |
Place of Birth (21231 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Native born: | 13,130 | 88.8% | 86.2% |
| Foreign born: | 164 | 1.1% | 13.9% |
| Naturalized citizen: | 1,650 | 1006.1% | 52.7% |
| Not a citizen: | 1,650 | 1006.1% | 47.3% |
| Foreign-born by region: | -- | -- | -- |
| Europe: | 1,650 | 1006.1% | 10.5% |
| Asia: | 279 | 170.1% | 31.3% |
| Africa: | 217 | 132.3% | 5.5% |
| Oceania: | 73 | 44.5% | 0.5% |
| Latin America: | 407 | 248.2% | 50.0% |
| Northern America: | 89 | 54.3% | 2.2% |
Language Spoken at Home (21231 zip code)
| Population 5 years and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Total: | 14,030 | -- | -- |
| English only: | 12,080 | 86.1% | 78.3% |
| Language other than English: | 1,950 | 13.9% | 21.5% |
| By language: | -- | -- | -- |
| Spanish: | 784 | 5.6% | 13.3% |
| Other Indo-European languages: | 567 | 4.0% | 3.5% |
| Asian/Pacific Island languages: | 344 | 2.5% | 3.5% |
| Other languages: | 255 | 1.8% | 1.0% |
Computers & Internet (21231 zip code)
| Households | Percent% | US AvgUS | |
|---|---|---|---|
| Households with a computer: | 7,818 | 100.0% | 93.1% |
| Households with broadband internet: | 7,481 | 95.7% | 89.4% |
Baltimore, MD21231