PlainZIP

Grasonville, MD · standard

ZIP Code 21638

Queen Anne's County, Maryland — Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

4,934
195/sq mi
$140,086
Median income
$569,200
Median home value
46.7%
Bachelor's or higher

The verdict

Grasonville pairs a top-decile household income with top-decile home values, in a rural, homeowner-dominated area.

Top 5%
household income, US ZIPs
Top 10%
home value, US ZIPs
195
people per sq mi
85%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 21638 against every reporting US ZIP.

ZIP code 21638 is classified by USPS as a standard delivery area and covers roughly 25.3 square miles in Grasonville, Queen Anne's County, Maryland. The area is home to 4,934 residents, producing a population density of 195 people per square mile, and falls within the New York time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 21638 against Maryland and the nation.

On the economic side, the median household income for ZIP 21638 sits at $140,086 (23% above the Maryland average), while per-capita income is $60,714. The poverty rate stands at 8.4% and the unemployment rate at 2.4%. On housing, the median home value is $569,200 (27% above the state average) with median rent at $1,692 per month, and 84.5% of occupied units are owner-occupied, a direct signal of whether 21638 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 46.7% of adults hold a bachelor's degree or higher, the median age is 42.3, and the average commute is 35 minutes. We also surface 6 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Queen Anne's County, so you can benchmark 21638 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →

Top industries in ZIP 21638

Top 5 sectors by establishment count

Which industries have the most business establishments in ZIP 21638.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, FHFA HPI for ZIP 21638, Grasonville, MD · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; HUD FMR + FHFA HPI updated quarterly/annually.

Quick Facts

4,934

Population

25.3

Area (sq mi)

195

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 21638?

42.3

Median Age

49.9%

Male

50.1%

Female

5.7%

Foreign-Born

White 78.9%
African American 5.8%
Asian 0.8%
American Indian or Alaska Native 0.1%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 12.3%
Hispanic or Latino 5.8%

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?

$140,086

Median Household Income

+23% vs state

$60,714

Per Capita Income

8.4%

Poverty Rate

2.4%

Unemployment Rate

35.2 min

Mean Commute Time

How ZIP 21638 ranks nationally

Household income vs. every US ZIP code

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

$140,086 Top 5% higher than 95% 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%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Below this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Below this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Below this entry. $140,000–$160,000: 686 US ZIPs (2%). This entry sits in this band. $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 66.8%
Bachelor's Degree or Higher 46.7%

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

What does housing look like?

2,360

Total Housing Units

1,916

Occupied Units

444

Vacant Units

2.81

Avg Household Size

Occupancy Type

Owner 84.5%
Renter 15.5%

$569,200

Median Home Value

+27% vs state

$1,692

Median Rent

1995

Median Year Built

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

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

+10.5%

YoY Change (2024)

259

HPI Index (2000 = 100)

+159%

Total Change Since 2000

Home values in ZIP 21638 have increased 10.5% over the past year (2024). Since 2000, this ZIP has seen +159% cumulative appreciation.

Year Annual Change HPI Index
2020 +4.5% 180
2021 +8.6% 195
2022 +11.3% 217
2023 +7.9% 234
2024 +10.5% 259

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 125 business establishments in ZIP 21638, employing approximately 1,310 people with a combined annual payroll of $60,970,000.

125

Businesses

1,310

Employees

$61.0M

Annual Payroll

14

Industry Sectors

Industry Establishments % of Total
Professional, scientific, and technical services 19 15.2%
Construction 15 12.0%
Accommodation and food services 15 12.0%
Other services (except public administration) 14 11.2%
Retail trade 13 10.4%
Administrative and support and waste management and remediation services 11 8.8%
Wholesale trade 7 5.6%
Transportation and warehousing 6 4.8%
Real estate and rental and leasing 6 4.8%
Finance and insurance 4 3.2%
Health care and social assistance 4 3.2%
Manufacturing 3 2.4%
Educational services 3 2.4%
Arts, entertainment, and recreation 3 2.4%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 21638 vs 21658 →

ZIP 21638 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 21638 ranks #3 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 21638 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 21638 ranks the highest of 7 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
21658 Queenstown, MD 3,862 3.5 mi
21619 Chester, MD 5,848 4.2 mi
21666 Stevensville, MD 12,309 7.0 mi
21679 Wye Mills, MD 483 6.6 mi
21624 Claiborne, MD 143 7.9 mi
21647 Mcdaniel, MD 289 9.9 mi

More ZIP Codes in Queen Anne's County

21666 standard
Stevensville, MD
Pop: 12,309
21617 standard
Centreville, MD
Pop: 9,907
21619 standard
Chester, MD
Pop: 5,848
21658 standard
Queenstown, MD
Pop: 3,862
21623 standard
Church Hill, MD
Pop: 2,111
21668 standard
Sudlersville, MD
Pop: 1,904

Related Areas

Queen Anne's County Grasonville, MD Maryland

Frequently Asked Questions

What county is ZIP code 21638 in? ▼
ZIP code 21638 (Grasonville) is located in Queen Anne's County, Maryland. Queen Anne's County contains multiple ZIP codes, see the full list at /counties/queen-annes-md.
What is the population of ZIP code 21638? ▼
ZIP code 21638 in Grasonville, MD has a population of 4,934 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 21638? ▼
The median household income in ZIP 21638 is $140,086, which is 84% above the national average of $76,288.
What is the average home value in ZIP 21638? ▼
The median home value in ZIP 21638 is $569,200, which is 105% above the national average of $278,155.
What is the demographic makeup of ZIP 21638? ▼
The largest racial group in ZIP 21638 is White at 78.9%. Hispanic or Latino residents make up 5.8% of the population.
How many businesses are in ZIP code 21638? ▼
ZIP code 21638 has 125 business establishments employing approximately 1,310 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 21638? ▼
The top industries by establishment count in ZIP 21638 are: Professional, scientific, and technical services (19), Construction (15), Accommodation and food services (15). There are 14 industry sectors represented in total.
How have home values changed in ZIP code 21638? ▼
According to the FHFA House Price Index, home values in ZIP 21638 increased by 10.5% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 159%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 21638? ▼
In ZIP code 21638, 66.8% of residents aged 25+ have a high school diploma or higher, and 46.7% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 21638? ▼
The mean commute time for workers in ZIP code 21638 is 35.2 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend more time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 21638? ▼
In ZIP code 21638, approximately 84.5% of occupied housing units are owner-occupied and 15.5% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 21638? ▼
The poverty rate in ZIP code 21638 is 8.4% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

ZIP Code Research Guides

Reading Census Demographics
How to interpret population, income, and education data from the Census Bureau.
Understanding ZIP Code Data
What ZIP codes are, how ZCTAs differ, and what the data reveals.
Best ZIP Codes for Families
Key factors to evaluate when choosing a family-friendly neighborhood.
ZIP Codes for Relocation
Data-driven tips for evaluating ZIP codes before a move.

Official Data Resources for Grasonville, MD

Verify and explore additional data for this area using these official government sources.

U.S. Census Bureau
Official demographic, economic, and housing data from the American Community Survey.
HUD Fair Market Rents
Department of Housing and Urban Development rental cost estimates by metropolitan area.
FBI Uniform Crime Reports
Official crime statistics compiled from law enforcement agencies nationwide.
FHFA House Price Index
Federal Housing Finance Agency home value trends based on repeat sales and appraisals.

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