| City: | Hillsboro, Maryland |
| County: | Caroline County |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 10:01:17 PM |
| Population: | 128 [See All] |
| Area Codes: | 410 / 667 |
| Classification: | PO Box |
| Coordinates: | 38.9216, -75.9418 |
| Land Area: | 0.135 sq mi |
| Quick Link: |
Hillsboro is a small unincorporated community in Caroline County, Maryland, with just 128 residents living in 58 households. This compact village covers only 0.14 square miles in Maryland's rural Eastern Shore. Despite its small size, the Hillsboro post office maintains 77 PO Boxes, serving not just local residents but also people from surrounding areas without carrier delivery.
This is a PO Box Only Zone, which means there's no alternative mail delivery anywhere in the service area. While two rural carrier routes serve 23 street addresses in the immediate village, the post office remains the primary mail access point for the broader community. The adoption rate of 1.33 PO Boxes per household indicates the post office serves beyond just the 58 local homes.
Hillsboro has the character of a historic Maryland village. Main Street has the most delivery points with 10 records, followed by Church Street with 4 addresses including some apartments. Other streets include Academy Street, Maple Avenue, and Hillsboro Road. The median age of 41 years and median household income of $65,417 suggest a stable working-age community.
With 77% of residents identifying as white and 13% as Black or African American, Hillsboro maintains the diversity typical of rural Maryland's Eastern Shore. The community is predominantly owner-occupied, with 38 of the 58 households owning their homes. Many homes date to before 1939, giving the village its historic character.
Standard PO Box format:
[Recipient Name]
PO Box [Number]
Hillsboro, MD 21641General Delivery (available):
[Recipient Name]
General Delivery
Hillsboro, MD 21641Street names like Main, Church, and Academy reflect the historic character of this small Maryland village.
ZIP Code 21641 has 128 residents and 58 households (average 2.21 persons per household). The median age is 41.0 years, slightly older than the state (38.8) and slightly older than the nation (38.8). The gender split is 49.2% male and 50.8% female, which is slightly higher than the state male share (48.2%), making this a female-majority area. Largest groups are White (77.3%, much higher than the state average of 48.7% and well above the national average of 61.6%) and Black or African American (13.3%, much lower than the state average of 29.5%); Hispanic or Latino residents make up 3.9%, which is much lower than the national average (18.7%).
Explore More: Population Over Time By Age & Gender By Race By Gender Nativity & Citizenship
| 2020 Population: | 128Source: Census DHC |
| 2024 ACS Population Estimate: | 127Source: Census ACS |
| 2026 ZC Population Estimate: | 0Source: ZIP-Codes.com |
| Population Density: | 948.1 people per sq mile |
| Average Income: | $66,875Source: Census ACS |
| Households: | 58Source: Census DHC |
| Average House Value: | $254,200Source: Census ACS |
| Persons Per Household: | 2.21Source: Census DHC |
| Average Family Size: | 3.13Source: Census ACS |
| Group | 2010 | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Census ACS Population Estimate | -- | 41 | 53 | 43 | 63 | 84 | 96 | 89 | 102 | 88 | 87 | 122 | 149 | 130 | 127 |
| Decennial Census | 117 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 128 | -- | -- | -- | -- |
Median Age: 41
Male Median Age: 46.5
Female Median Age: 37.2
| 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 | 1 | 4 | 2 | 3 | 4 | 5 | 6 | 4 | 10 | 3 | 1 | 4 | 9 | 5 | 1 | 0 | 1 |
| Female | 1 | 2 | 4 | 5 | 4 | 4 | 10 | 6 | 0 | 4 | 3 | 7 | 2 | 5 | 6 | 1 | 0 | 1 |
| Total | 1 | 3 | 8 | 7 | 7 | 8 | 15 | 12 | 4 | 14 | 6 | 8 | 6 | 14 | 11 | 2 | 0 | 2 |
| White: | 99 | 80.49% |
| Black: | 17 | 13.82% |
| Hispanic:* | 5 | 4.07% |
| Asian: | 0 | 0% |
| American Indian: | 0 | 0% |
| Hawaiian: | 1 | 0.81% |
| Other: | 1 | 0.81% |
| Total: | 123 | 100% |
| Gender | Count | % | Median Age |
|---|---|---|---|
| Males: | 63 | 49.22% | 46.5 years |
| Females: | 65 | 50.78% | 37.2 years |
| Total: | 128 | 100% | 41.0 years |
| Native, born in the United States: | 123 | 96.85% |
| Native, born in PR, Island Areas, or abroad: | 0 | 0.00% |
| Foreign born, naturalized U.S. citizen: | 4 | 3.15% |
| Foreign born, not a U.S. citizen: | 0 | 3.15% |
| Total Population: | 127 | 100% |
| Total Native Population: | 123 | 96.85% |
| Total Foreign-born Population: | 4 | 3.15% |
In 2024, the Median household income is $66,875, which is well under the state median ($101,652), is down $6,875 (9.3%) since 2011 and above its 2019 pre-pandemic level by $0. Family households earn a median of $68,750 versus $0 for nonfamily households (a difference of $68,750). By gender, male median income is $76,563 and female is $53,750, which is considerably lower than the state female median ($68,044), with a current gap of $22,813 that has narrowed from 2011 to 2024. The labor-force participation rate is 50.9%, which is markedly below the state rate (67.2%). The unemployment rate is 1.7%, which is much lower than the national rate (5.2%). The largest occupation group is Service (31.0%).
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 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Household Income | $73,750 | $117,813 | $78,750 | $65,625 | $63,750 | $63,438 | $0 | $65,000 | $66,875 | $0 | $62,917 | $69,375 | $65,417 | $66,875 |
| Median Family Income | $73,750 | $118,750 | $71,250 | $62,500 | $63,750 | $64,063 | $45,625 | $65,750 | $69,583 | $85,750 | $83,750 | $87,500 | $66,667 | $68,750 |
| Median NonFamily Income | $66,250 | $28,750 | $82,813 | $68,750 | $0 | $32,500 | $24,750 | $0 | $50,000 | $0 | $0 | $0 | $0 | $0 |
| Median Male Income | $67,500 | $118,000 | $41,250 | $41,875 | $0 | $0 | $40,625 | $43,750 | $44,583 | $46,250 | $51,667 | $54,643 | $73,250 | $76,563 |
| Median Female Income | $26,667 | $26,563 | $0 | $46,250 | $0 | $37,500 | $41,250 | $45,000 | $41,250 | $47,500 | $44,375 | $32,500 | $51,250 | $53,750 |
| Employed: | 58 | 50.00% |
| Unemployed: | 1 | 0.86% |
| Not In Labor Force: | 57 | 49.14% |
| Total: | 116 | 100% |
| Management, business, science, and arts: | 12 | 20.69% |
| Service: | 18 | 31.03% |
| Sales and Office: | 18 | 31.03% |
| Natural resources, construction, and maintenance: | 7 | 12.07% |
| Production, transportation, and material moving: | 3 | 5.17% |
| Total Civilian Employed Population: | 58 | 100% |
In 2024, the median home value is $254,200, which is considerably lower than the state median ($397,700), is up $0 (0.00%) since 2011 and above its 2019 pre-pandemic level by $72,900. The median gross rent is $955, which is considerably lower than the state median ($1,662), and above its 2019 pre-pandemic level by $138. Of occupied housing, owners make up 69.64% (69.23% with a mortgage, 30.77% free-and-clear) and renters 30.36% - making this ZIP Code more home ownership than the state and under national rental averages. Insufficient data for vacancy rate.
Explore More: Compare Home Value Home Value Over Time Rent & Over Time Housing Occupancy
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Home Value | $254,200 | $236,100 | $235,700 | $228,100 | $225,000 | $216,700 | $196,900 | $172,500 | $181,300 | $179,200 | $187,500 | $220,800 | $241,700 | $254,200 |
| Less than $500: | 0 | 0.00% |
| $500 to $999: | 13 | 76.47% |
| $1,000 to $1,499: | 2 | 11.76% |
| $1,500 to $1,999: | 0 | 0.00% |
| $2,000 to $2,499: | 2 | 11.76% |
| $2,500 to $2,999: | 0 | 0.00% |
| $3,000 or more: | 0 | 0.00% |
| No Rent: | 0 | 0.00% |
| Total: | 17 | 100% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Rent | $0 | $0 | $0 | $0 | $975 | $963 | $950 | $1,000 | $817 | $790 | $871 | $864 | $955 | $955 |
| Owner Occupied (with mortgage): | 27 | 48.21% |
| Owner Occupied (free and clear, no mortgage): | 12 | 21.43% |
| Renter Occupied: | 17 | 30.36% |
| Total Occupied Housing Units: | 56 | 100% |
| Occupied Housing Units: | 56 | 80.00% |
| Vacant Housing Units (not graphed): | 14 | 20.00% |
| Total Housing Units: | 70 | 100% |
| Single-Family Units: | 51 | 72.86% |
| Multi-Family Units: | 19 | 27.14% |
| Other Units: | 0 | 0.00% |
| Total Housing Units: | 70 | 100% |
In 2024, 15.70% of adults (25+) have a bachelor's degree or higher, which is markedly below the state rate (42.70%). High school or higher is 86.10%, which is on par with the state rate (91.00%). The uninsured rate is 1.60%, which is far lower than the national rate (8.60%). Private coverage is 49.60%, which is generally lower than the state rate (73.40%). Public coverage is 66.10%, which is markedly above the state rate (34.20%). The share of people in poverty is 8.30%, which is on par with the state rate (6.30%), up 20.00 percentage points since 2011 and above its 2019 pre-pandemic level by 4.20 percentage points. This signals a sharp increase in hardship - a shrinking consumer base, heavy pressure on public services, and job-market contraction risks. Among residents ages 3+, the largest enrollment group is college (37.50%). College enrollment is 37.50%, 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: | 0 | 0.00% |
| 9th to 12th grade, no diploma: | 15 | 13.89% |
| High school graduate (includes equivalency): | 51 | 47.22% |
| Some college, no degree: | 17 | 15.74% |
| Associate's degree: | 8 | 7.41% |
| Bachelor's degree: | 10 | 9.26% |
| Graduate or professional degree: | 7 | 6.48% |
| Total: | 108 | 100% |
| High school or higher: | 93 | 86.11% |
| Bachelor's degree or higher: | 17 | 15.74% |
| Private Insurance: | 63 | 42.28% |
| Public Insurance: | 84 | 56.38% |
| No Insurance: | 2 | 1.34% |
| Total: | 149 | 100% |
| Has Health Insurance: | 147 | 98.66% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| % of People in Poverty | 0.0% | 0.0% | 0.0% | 27.8% | 18.2% | 14.8% | 33.3% | 29.6% | 15.8% | 11.8% | 18.5% | 13.3% | 20.0% | 8.3% |
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: | 2 | 12.50% |
| Kindergarten: | 2 | 12.50% |
| Elementary school (grades 1-8): | 5 | 31.25% |
| High school (grades 9-12): | 1 | 6.25% |
| College or graduate school: | 6 | 37.50% |
| Total: | 16 | 100% |
| Early Childhood: | 4 | 25.00% |
| K-12 (Primary & Secondary School): | 8 | 50.00% |
ZIP Code 21641 is designated for PO Box delivery only; business establishment and employment data are not available.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 225Source: 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 21641 is located in Caroline County, Maryland, within the Metropolitan Statistical Area (CBSA ) and Maryland's 1st Congressional District. This area has a population of 0 people, about 0.00% of whom live in ZIP Code 21641. It covers 0.135 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | --Source: Census |
| CBSA Number: | --Source: Census |
| CBSA Type: | --Source: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 0Source: Census |
| MSA: | Source: Census |
| Land Area: | 0.135 sq miSource: Census |
| Water Area: | --Source: 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: | 2439175Source: Census |
| Place Name: | Hillsboro town; MarylandSource: Census |
We could not locate which school district 21641 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 March 1, 2026.