Washington Grove, MD · standard
ZIP Code 20880
Montgomery County, Maryland - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 450
- 736/sq mi High-density area
- $134,583
- Median income Above-median income area
- $612,700
- Median home value Above-median home value
- 77.7%
- Bachelor's or higher Above-average bachelor's attainment
National ZIP placement
Washington Grove pairs a top-decile household income with top-decile home values, in a low-density, homeowner-dominated area.
- Top 6%
- household income, US ZIPs
- Top 9%
- home value, US ZIPs
- 736
- people per sq mi
- 100%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 20880 against every reporting US ZIP.
ZIP code 20880 is a sparsely populated ZIP (a standard USPS delivery area) in Washington Grove, Montgomery County, Maryland, home to just 450 residents across 0.6 square miles, a density of 736 people per square mile, in the New York time zone.
ZIP 20880 skews affluent, with a median household income of $134,583 (18% above the average Maryland ZIP), while per-capita income is $83,763. Both reported hardship measures are comparatively low in absolute terms: poverty is 3.5% and unemployment is 3.7%. Housing is both higher-cost and owner-heavy: median home value is $612,700 (37% above the average Maryland ZIP), while 99.7% of occupied homes are owner-occupied.
This is a highly-educated ZIP: 77.7% of adults hold a bachelor's degree or higher, the median age is 62.2, and the average commute is 27 minutes. The page also surfaces 10 ZIP codes within roughly 10 miles and 6 more in Montgomery County, so 20880 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 20880, Washington Grove, 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
450
Population
0.6
Area (sq mi)
736
People / sq mi
New York
Time Zone
standard
ZIP Type
Who lives in ZIP 20880?
62.2
Median Age
52.0%
Male
48.0%
Female
11.8%
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?
$134,583
Median Household Income
+18% vs state ZIP avg
$83,763
Per Capita Income
3.5%
Poverty Rate
3.7%
Unemployment Rate
26.6 min
Mean Commute Time
How ZIP 20880 ranks among Maryland ZIPs
Washington Grove, 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)
$134,583 Top 29% higher than 71% 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
303housing units
303
Total Housing Units
289
Occupied Units
14
Vacant Units
2.00
Avg Household Size
Occupancy Type
$612,700
Median Home Value
+37% vs state ZIP avg
1952
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
+8.5%
YoY Change (2023)
229
HPI Index (2000 = 100)
+129%
Total Change Since 2000
Home values in ZIP 20880 have increased 8.5% over the past year (2023). Since 2000, this ZIP has seen +129% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2018 | +9.9% | 179 |
| 2019 | +1.0% | 181 |
| 2020 | +6.0% | 192 |
| 2021 | +8.5% | 208 |
| 2023 | – | 229 |
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 2023. ZIP codes with few transactions may show missing values.
What businesses operate in this ZIP?
Census Bureau data shows 3 business establishments in ZIP 20880, employing approximately 17 people with a combined annual payroll of $933,000.
3
Businesses
17
Employees
$933K
Annual Payroll
0
Industry Sectors
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 20880 vs 20877 →
ZIP 20880 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 20878
Gaithersburg (20878)
62,446 residents
- 20850
Rockville (20850)
46,340 residents
- 20877
Gaithersburg (20877)
34,321 residents
- 20886
Montgomery Village (20886)
33,282 residents
- 20853
Rockville (20853)
29,673 residents
- 20832 24,965
Olney (20832)
24,965 residents
- 20879 24,360
Gaithersburg (20879)
24,360 residents
- 20855 14,295
Derwood (20855)
14,295 residents
- 20851 14,191
Rockville (20851)
14,191 residents
What this shows Among its immediate neighbors, ZIP 20880 ranks #0 by population - useful context the national average alone can't give.
ZIP 20880 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 20832
Olney (20832)
$168,524 median income
- 20853
Rockville (20853)
$159,080 median income
- 20855
Derwood (20855)
$149,110 median income
- 20878
Gaithersburg (20878)
$144,313 median income
- 20880
Washington Grove (20880)
$134,583 median income
- 20851
Rockville (20851)
$126,411 median income
- 20850
Rockville (20850)
$125,950 median income
- 20879
Gaithersburg (20879)
$112,104 median income
- 20886
Montgomery Village (20886)
$98,542 median income
What this shows By household income, ZIP 20880 ranks #5 of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 20877 | Gaithersburg, MD | 34,321 | 0.8 mi |
| 20879 | Gaithersburg, MD | 24,360 | 2.0 mi |
| 20855 | Derwood, MD | 14,295 | 2.2 mi |
| 20899 | Gaithersburg, MD | 142 | 2.3 mi |
| 20850 | Rockville, MD | 46,340 | 3.4 mi |
| 20886 | Montgomery Village, MD | 33,282 | 3.0 mi |
| 20878 | Gaithersburg, MD | 62,446 | 4.6 mi |
| 20832 | Olney, MD | 24,965 | 5.5 mi |
| 20851 | Rockville, MD | 14,191 | 5.1 mi |
| 20853 | Rockville, MD | 29,673 | 4.9 mi |
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 20880, both outside MD so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Montgomery County
Related Areas
Frequently Asked Questions
What county is ZIP code 20880 in?
ZIP code 20880 (Washington Grove) is located in Montgomery County, Maryland. Montgomery County contains multiple ZIP codes, see the full list at /counties/montgomery-md.
What is the population of ZIP code 20880?
ZIP code 20880 in Washington Grove, MD has a population of 450 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 20880?
The median household income in ZIP 20880 is $134,583, which is 76% above the national average of $76,288.
What is the average home value in ZIP 20880?
The median home value in ZIP 20880 is $612,700, which is 120% above the national average of $278,155.
What is the demographic makeup of ZIP 20880?
The largest racial group in ZIP 20880 is White at 84.2%. Hispanic or Latino residents make up 4.3% of the population.
How many businesses are in ZIP code 20880?
ZIP code 20880 has 3 business establishments employing approximately 17 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
How have home values changed in ZIP code 20880?
According to the FHFA House Price Index, home values in ZIP 20880 increased by 8.5% in 2023. Since 2000, home values in this ZIP have appreciated by approximately 129%. 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 20880?
In ZIP code 20880, 83.2% of residents aged 25+ have a high school diploma or higher, and 77.7% 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 20880?
The mean commute time for workers in ZIP code 20880 is 26.6 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 20880?
In ZIP code 20880, approximately 99.7% of occupied housing units are owner-occupied and 0.3% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 20880?
The poverty rate in ZIP code 20880 is 3.5% 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 20880's numbers, next.
- See how ZIP 20880 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Washington Grove, 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.