| City: | Westover, Maryland |
| Names to Avoid: | Eastern Correctional Inst, Easton Correctional Inst |
| County: | Somerset County |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:30:07 AM |
| Population: | 3,258 [See All] |
| Area Codes: | 410 / 443 / 667 |
| Classification: | Unique [Company/Government] |
| Coordinates: | 38.1570, -75.6959 |
| Land Area: | 0.351 sq mi |
| Quick Link: |
Eastern Correctional Institution operates under dedicated ZIP code 21890 near Westover in Somerset County on Maryland's Eastern Shore, approximately 90 miles from Washington, D.C. Part of the Maryland Department of Public Safety and Correctional Services, ECI serves as a major state prison complex on the rural Lower Eastern Shore. The facility houses both medium and minimum security inmates. This postal designation has served the institution for over two decades.
The 2020 Census recorded 3,258 residents within this 0.24-square-mile ZIP, with a median age of 35.1 years. Nearly all residents (3,255) are counted in institutionalized group quarters, reflecting the incarcerated population. Census demographic data shows 872 white residents, with the remaining population primarily Black. The 126 veterans among the inmate population is notable. Westover serves as the valid mailing city.
| Population: | 3,258 |
| Median Age: | 35.1 |
| Housing Units: | 1 |
| Residential: | 0 |
| Business: | 6 |
ZIP Code 21890 has 3,258 residents and 1 households (average 3.00 persons per household). The median age is 35.1 years, younger than the state (38.8) and younger than the nation (38.8). The gender split is 99.8% male and 0.2% female, which is much higher than the state male share (48.2%), making this a male-majority area. Largest groups are Black or African American (68.9%, much higher than the state average of 29.5% and well above the national average of 12.4%) and White (26.8%, much lower than the state average of 48.7% and well below the national average of 61.6%); Hispanic or Latino residents make up 3.4%, which is much lower than the national average (18.7%), and Black or African American share is much higher than both the state (29.5%) and national averages (12.4%).
Explore More: Population Over Time By Age & Gender By Race By Gender Nativity & Citizenship
| 2020 Population: | 3,258Source: Census DHC |
| 2024 ACS Population Estimate: | 3,248Source: Census ACS |
| 2026 ZC Population Estimate: | 0Source: ZIP-Codes.com |
| Population Density: | 9,282.1 people per sq mile |
| Average Income: | $0Source: Census ACS |
| Households: | 1Source: Census DHC |
| Average House Value: | $0Source: Census ACS |
| Persons Per Household: | 3.00Source: Census DHC |
| Average Family Size: | 3.00Source: Census ACS |
| Group | 2010 | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Census ACS Population Estimate | -- | 2,696 | 3,127 | 2,902 | 2,692 | 3,976 | 3,345 | 2,715 | 2,799 | 2,816 | 3,272 | 3,699 | 3,071 | 3,248 |
| Decennial Census | 3,240 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 3,258 | -- | -- | -- |
Median Age: 35.1
Male Median Age: 35.1
Female Median Age: 42
| Group | < 5 | 5-9 | 10-14 | 15-19 | 20-24 | 25-29 | 30-34 | 35-39 | 40-44 | 45-49 | 50-54 | 55-59 | 60-64 | 65-69 | 70-74 | 75-79 | 80-84 | 85+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Male | 0 | 0 | 0 | 25 | 367 | 618 | 605 | 484 | 344 | 241 | 240 | 170 | 84 | 37 | 17 | 13 | 7 | 0 |
| Female | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 |
| Total | 0 | 0 | 0 | 25 | 370 | 618 | 605 | 484 | 344 | 241 | 240 | 170 | 87 | 37 | 17 | 13 | 7 | 0 |
| White: | 872 | 25.91% |
| Black: | 2,244 | 66.69% |
| Hispanic:* | 111 | 3.30% |
| Asian: | 0 | 0% |
| American Indian: | 27 | 0.80% |
| Hawaiian: | 0 | 0% |
| Other: | 111 | 3.30% |
| Total: | 3,365 | 100% |
| Gender | Count | % | Median Age |
|---|---|---|---|
| Males: | 3,252 | 99.82% | 35.1 years |
| Females: | 6 | 0.18% | 42.0 years |
| Total: | 3,258 | 100% | 35.1 years |
| Native, born in the United States: | 3,085 | 94.98% |
| Native, born in PR, Island Areas, or abroad: | 21 | 0.65% |
| Foreign born, naturalized U.S. citizen: | 14 | 0.43% |
| Foreign born, not a U.S. citizen: | 128 | 4.37% |
| Total Population: | 3,248 | 100% |
| Total Native Population: | 3,106 | 95.63% |
| Total Foreign-born Population: | 142 | 4.37% |
In 2023, the Median household income is $0, which is far less than the state median ($101,652), and above its 2019 pre-pandemic level by $0. Family households earn a median of $0 versus $0 for nonfamily households (a difference of $0). By gender, male median income is $19,333 and female is $0, which is well under the state female median ($68,044), with a current gap of $19,333 that has widened from 2011 to 2023. The labor-force participation rate is 0.0%, which is considerably lower than the state rate (67.2%).
Explore More: Income Over Time Household Income Employment Status By Occupation
| Income Type | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Household Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Median Family Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Median NonFamily Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Median Male Income | $0 | $30,577 | $30,509 | $30,550 | $30,486 | $31,055 | $48,456 | $50,417 | $50,341 | $50,417 | $0 | $0 | $19,333 |
| Median Female Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Employed: | 0 | 0.00% |
| Unemployed: | 0 | 0.00% |
| Not In Labor Force: | 3,248 | 100.00% |
| Total: | 3,248 | 100% |
| Management, business, science, and arts: | 0 | 0% |
| Service: | 0 | 0% |
| Sales and Office: | 0 | 0% |
| Natural resources, construction, and maintenance: | 0 | 0% |
| Production, transportation, and material moving: | 0 | 0% |
| Total Civilian Employed Population: | 0 | 100% |
In 2023, 2.10% of adults (25+) have a bachelor's degree or higher, which is markedly below the state rate (42.70%). High school or higher is 69.70%, which is markedly below the state rate (91.00%). Insufficient data for health insurance coverage. Insufficient data for poverty. Among residents ages 3+, the largest enrollment group is high school (55.00%). College enrollment is 45.00%, which is comparable to the national rate (26.70%), meaning the community mirrors broader higher-education participation.
Explore More: Educational Attainment Health Insurance Poverty Over Time School Enrollment
| Less than 9th grade: | 125 | 4.32% |
| 9th to 12th grade, no diploma: | 750 | 25.93% |
| High school graduate (includes equivalency): | 1,363 | 47.13% |
| Some college, no degree: | 519 | 17.95% |
| Associate's degree: | 75 | 2.59% |
| Bachelor's degree: | 35 | 1.21% |
| Graduate or professional degree: | 25 | 0.86% |
| Total: | 2,892 | 100% |
| High school or higher: | 2,017 | 69.74% |
| Bachelor's degree or higher: | 60 | 2.07% |
| Private Insurance: | 0 | 0% |
| Public Insurance: | 0 | 0% |
| No Insurance: | 0 | 0% |
| Total: | 0 | 100% |
| Has Health Insurance: | 0 | 0% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| % of People in Poverty | -666,666,666.0% | -666,666,666.0% | -666,666,666.0% | -666,666,666.0% | -666,666,666.0% | -666,666,666.0% | -666,666,666.0% | -666,666,666.0% | -666,666,666.0% | 0.0% | 0.0% | 0.0% | 0.0% |
Note: Counts of Families & People in poverty are not published at the ZIP Code level due to small sample sizes. Percentages shown are survey estimates from the American Community Survey (ACS). They may differ from official poverty statistics. The U.S. Census Bureau defines poverty status by comparing a family's or individual's total income with federal poverty thresholds that vary by family size and composition.
| Nursery School, Preschool: | 0 | 0.00% |
| Kindergarten: | 0 | 0.00% |
| Elementary school (grades 1-8): | 0 | 0.00% |
| High school (grades 9-12): | 33 | 55.00% |
| College or graduate school: | 27 | 45.00% |
| Total: | 60 | 100% |
| Early Childhood: | 0 | 0.00% |
| K-12 (Primary & Secondary School): | 33 | 55.00% |
ZIP Code 21890 is assigned to a single organization or institution. Detailed business demographics are not published for unique ZIP Codes. USPS data shows 0 residential mailboxes and 6 business mailboxes, reflecting local delivery coverage.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 6Source: USPS |
| Total Delivery Receptacles: | 803Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 0Source: CBP |
| 1st Quarter Payroll: | $0Source: CBP |
| Annual Payroll: | $0Source: CBP |
| # of Employees: | 0Source: CBP |
ZIP Code 21890 is located in Somerset County, Maryland, within the Salisbury, MD Metropolitan Statistical Area (CBSA 41540) and Maryland's 1st Congressional District. This Metro area has a population of 128,802 people, about 2.53% of whom live in ZIP Code 21890. It covers 0.351 sq mi of land and a water area of 0.007 sq mi.
| CBSA Name: | Salisbury, MDSource: Census |
| CBSA Number: | 41540Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 128,802Source: Census |
| MSA: | Source: Census |
| Land Area: | 0.351 sq miSource: Census |
| Water Area: | 0.007 sq miSource: Census |
| Congressional District: | 01Source: USPS |
| Congressional Land Area: | 3977.06 sq miSource: Census |
| PMSA: | Source: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | --Source: Census |
| Place Name: | --Source: Census |
We could not locate which school district 21890 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.
Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on January 1, 2026.