Big Pool, MD · standard
ZIP Code 21711
Washington County, Maryland - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 1,029
- 17/sq mi Moderate-density area
- $91,250
- Median income Above-median income area
- $310,600
- Median home value Above-median home value
- 20.2%
- Bachelor's or higher Near-average bachelor's attainment
National ZIP placement
Big Pool pairs an above-median household income with above-median home values, in a rural, homeowner-dominated area.
- Top 26%
- household income, US ZIPs
- Top 32%
- home value, US ZIPs
- 17
- people per sq mi
- 100%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 21711 against every reporting US ZIP.
ZIP code 21711 is a sparsely populated ZIP (a standard USPS delivery area) in Big Pool, Washington County, Maryland, home to just 1,029 residents across 61.6 square miles, a density of 17 people per square mile, in the New York time zone.
ZIP 21711 lands in the middle-income range, with a median household income of $91,250 (20% below the average Maryland ZIP), while per-capita income is $45,819. The poverty rate is 11.2%, with unemployment at 5.5%; those measures add context to the income figure. Home values sit below the statewide ZIP benchmark: the median is $310,600 (31% below the average Maryland ZIP); owner occupancy is 100.0%.
Educational attainment sits below the national norm: 20.2% of adults hold a bachelor's degree or higher, the median age is 52.3, and the average commute is -. The page also surfaces 5 ZIP codes within roughly 10 miles and 6 more in Washington County, so 21711 can be compared with both its immediate and county-level context.
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 21711, Big Pool, 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
1,029
Population
61.6
Area (sq mi)
17
People / sq mi
New York
Time Zone
standard
ZIP Type
Who lives in ZIP 21711?
52.3
Median Age
48.4%
Male
51.6%
Female
0.0%
Foreign-Born
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?
$91,250
Median Household Income
-20% vs state ZIP avg
$45,819
Per Capita Income
11.2%
Poverty Rate
5.5%
Unemployment Rate
How ZIP 21711 ranks among Maryland ZIPs
Big Pool, MD household income vs. every Maryland ZIP code
Median household income among 419 reporting Maryland ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$91,250 39th percentile higher than 39% of 419 Maryland ZIPs
Each bar is a $20K-wide band; taller bars hold more Maryland 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?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
448housing units
448
Total Housing Units
434
Occupied Units
14
Vacant Units
2.14
Avg Household Size
Occupancy Type
$310,600
Median Home Value
-31% vs state ZIP avg
1974
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What businesses operate in this ZIP?
Census Bureau data shows 16 business establishments in ZIP 21711, employing approximately 145 people with a combined annual payroll of $7,335,000.
16
Businesses
145
Employees
$7.3M
Annual Payroll
1
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Construction | 7 | 43.8% |
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 21711 vs 21722 →
ZIP 21711 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 25427
Hedgesville (25427)
14,322 residents
- 25419
Falling Waters (25419)
9,251 residents
- 17236
Mercersburg (17236)
8,895 residents
- 21722 5,545
Clear Spring (21722)
5,545 residents
- 21711 1,029
Big Pool (21711)
1,029 residents
- 17212 702
Big Cove Tannery (17212)
702 residents
What this shows Among its immediate neighbors, ZIP 21711 ranks #5 by population - useful context the national average alone can't give.
ZIP 21711 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 21711
Big Pool (21711)
$91,250 median income
- 25419
Falling Waters (25419)
$89,284 median income
- 21722
Clear Spring (21722)
$88,232 median income
- 25427
Hedgesville (25427)
$87,184 median income
- 17212
Big Cove Tannery (17212)
$84,205 median income
- 17236
Mercersburg (17236)
$79,271 median income
What this shows By household income, ZIP 21711 ranks the highest of 6 neighboring ZIPs, local affluence varies block to block, not just metro to metro.
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 21711, both outside MD so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar population
Nearest cross-state ZIPs by resident population (1,029 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Washington County
Related Areas
Frequently Asked Questions
What county is ZIP code 21711 in?
ZIP code 21711 (Big Pool) is located in Washington County, Maryland. Washington County contains multiple ZIP codes, see the full list at /counties/washington-md.
What is the population of ZIP code 21711?
ZIP code 21711 in Big Pool, MD has a population of 1,029 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 21711?
The median household income in ZIP 21711 is $91,250, which is 20% above the national average of $76,288.
What is the average home value in ZIP 21711?
The median home value in ZIP 21711 is $310,600, which is 12% above the national average of $278,155.
What is the demographic makeup of ZIP 21711?
The largest racial group in ZIP 21711 is White at 100.0%.
How many businesses are in ZIP code 21711?
ZIP code 21711 has 16 business establishments employing approximately 145 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What is the education level in ZIP code 21711?
In ZIP code 21711, 63.6% of residents aged 25+ have a high school diploma or higher, and 20.2% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the poverty rate in ZIP code 21711?
The poverty rate in ZIP code 21711 is 11.2% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.
Related
Take this with you
What to do with ZIP 21711's numbers, next.
- See how ZIP 21711 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Big Pool, MD ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
- Save this ZIP to your shortlist to track alongside others you're considering View your shortlist
ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.