PlainZIP

Hillsboro, MD · standard

ZIP Code 21641

Caroline County, Maryland - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

117
516/sq mi
$66,875
Median income
$254,200
Median home value
15.7%
Bachelor's or higher

The verdict

Hillsboro pairs a below-median household income with above-median home values, in a low-density, homeowner-dominated area.

42th pct
household income, US ZIPs
Top 42%
home value, US ZIPs
516
people per sq mi
70%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 21641 against every reporting US ZIP.

ZIP code 21641 is a sparsely populated ZIP (a standard USPS delivery area) in Hillsboro, Caroline County, Maryland, home to just 117 residents across 0.2 square miles, a density of 516 people per square mile, in the New York time zone.

ZIP 21641 reports a modest median household income of $66,875 (41% below the Maryland average), while per-capita income is $31,225. Local economic indicators show a 23.6% poverty rate alongside 1.7% unemployment. Housing costs here run $254,200 for a typical home value (43% below the state average), with rent averaging $955 a month; 69.6% of homes are owner-occupied.

Educational attainment sits below the national norm: 15.7% of adults hold a bachelor's degree or higher, the median age is 58.8, and the average commute is -. To put 21641 in local context, 9 ZIP codes within roughly 10 miles appear further down this page alongside 6 additional ZIPs in Caroline County, for a geography-aware comparison.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 21641, Hillsboro, MD · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

117

Population

0.2

Area (sq mi)

516

People / sq mi

New York

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 21641?

58.8

Median Age

40.2%

Male

59.8%

Female

3.1%

Foreign-Born

White 94.5%
African American 1.6%
Asian 0.0%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 3.9%
Hispanic or Latino 0.0%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$66,875

Median Household Income

-41% vs state

$31,225

Per Capita Income

23.6%

Poverty Rate

1.7%

Unemployment Rate

How ZIP 21641 ranks nationally

Hillsboro, MD household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$66,875 42nd percentile higher than 42% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). This entry sits in this band. $80,000–$100,000: 5,778 US ZIPs (19%). Above this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 63.0%
Bachelor's Degree or Higher 15.7%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

70

Total Housing Units

56

Occupied Units

14

Vacant Units

2.27

Avg Household Size

Occupancy Type

Owner 69.6%
Renter 30.4%

$254,200

Median Home Value

-43% vs state

$955

Median Rent

1938

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

Nearby ZIP Codes

Want a side-by-side? Compare 21641 vs 21657 →

ZIP 21641 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 21641 ranks #0 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 21641 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 21641 ranks #9 of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
21657 Queen Anne, MD 777 3.6 mi
21660 Ridgely, MD 4,063 3.8 mi
21625 Cordova, MD 2,719 4.2 mi
21679 Wye Mills, MD 483 7.7 mi
21629 Denton, MD 9,555 7.2 mi
21639 Greensboro, MD 4,408 8.6 mi
21617 Centreville, MD 9,907 10.5 mi
21636 Goldsboro, MD 1,186 10.4 mi
21601 Easton, MD 23,597 11.4 mi

More ZIP Codes in Caroline County

21629 standard
Denton, MD
Pop: 9,555
21632 standard
Federalsburg, MD
Pop: 6,353
21655 standard
Preston, MD
Pop: 5,009
21639 standard
Greensboro, MD
Pop: 4,408
21660 standard
Ridgely, MD
Pop: 4,063
21649 standard
Marydel, MD
Pop: 1,858

Related Areas

Caroline County Hillsboro, MD Maryland

Frequently Asked Questions

What county is ZIP code 21641 in? ▼
ZIP code 21641 (Hillsboro) is located in Caroline County, Maryland. Caroline County contains multiple ZIP codes, see the full list at /counties/caroline-md.
What is the population of ZIP code 21641? ▼
ZIP code 21641 in Hillsboro, MD has a population of 117 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 21641? ▼
The median household income in ZIP 21641 is $66,875, which is 12% below the national average of $76,288.
What is the average home value in ZIP 21641? ▼
The median home value in ZIP 21641 is $254,200, which is 9% below the national average of $278,155.
What is the demographic makeup of ZIP 21641? ▼
The largest racial group in ZIP 21641 is White at 94.5%.
What is the education level in ZIP code 21641? ▼
In ZIP code 21641, 63.0% of residents aged 25+ have a high school diploma or higher, and 15.7% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What percentage of residents own vs. rent in ZIP 21641? ▼
In ZIP code 21641, approximately 69.6% of occupied housing units are owner-occupied and 30.4% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 21641? ▼
The poverty rate in ZIP code 21641 is 23.6% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.