20880 Property Tax Rate
Washington Grove, Maryland · Part of Montgomery County
Effective Tax Rate
1.01%
51.2% above state avgMedian Annual Tax
$6,008
$501/mo escrow
Estimate Your Tax
Annual Tax
$6,008
Monthly
$501
Eff. Rate
1.01%
Buyer decision brief
What ZIP 20880 means for your housing budget
Use this ZIP page to compare recurring tax burden before you compare listing prices. The numbers below are Census ZCTA estimates, so they are strongest for neighborhood comparison and weakest for parcel-specific tax planning.
Monthly escrow signal
$501/mo
Based on median annual tax paid
State context
0.05 percentage points above the Maryland average
Maryland average: 0.96%
Data confidence
High confidenceThe Census margin of error is $261, about 4% of the median tax estimate.
Verify before you offer
- Confirm parcel assessed value with Montgomery County assessor.
- Check homestead, senior, veteran, and disability exemptions.
- Ask whether purchase triggers reassessment or value-cap reset.
- Review school district and special assessment boundaries.
Lower-rate similar ZIPs
This is informational content, not tax, legal, or mortgage advice. Local assessor records remain the source of truth for a specific property.
Data confidence ledger
Can you trust ZIP 20880 for comparison?
ACS vintage
2019-2023 ACS 5-Year Estimates
Five-year Census ZCTA estimates.
ZCTA caveat
Census area, not parcel boundary
USPS ZIP routes and taxing districts can differ inside the same area.
Field completeness
3/3 required fields
Median tax, home value, and derived rate are present.
MOE status
Strong ACS confidence
$261 tax MOE, 4% of the median tax estimate.
Last site refresh
March 10, 2026
Dataset and page-quality audit run locally before publication.
County fallback
County context only
Montgomery County is used for assessor verification and broader context.
Tax bill anatomy
What can change your actual bill in ZIP 20880
Use the ZIP estimate to compare neighborhoods, then verify these parcel-level inputs before relying on a payment estimate.
Assessed value
The ZCTA median home value is $594,200, but your bill starts with the local assessed value for a specific parcel.
Effective rate
The displayed rate is 1.01%, derived from median tax paid divided by median home value.
Exemptions
Homestead, senior, veteran, disability, and local exemptions can reduce taxable value. Confirm eligibility before estimating escrow.
Reassessment
A purchase can change assessed value depending on Maryland and county rules. Ask how sale price affects the next assessment cycle.
Escrow impact
The median tax paid in this ZCTA equals about $501 per month before insurance, HOA dues, or special assessments.
Assessor verification
Montgomery County assessor or tax collector records are the source of truth for parcel taxes, appeal windows, and exemptions.
How ZIP 20880 Compares
Median Annual Property Tax
ZIP 20880
1.01%
Effective rate
Maryland Avg
0.96%
Effective rate
National Avg
1.10%
Effective rate
State Ranking
Property Tax Rank in Maryland
Higher than 64% of ZIP codes in Maryland(64th percentile, 423 ZIPs compared)
Property Tax Analysis
Property Tax Insights for ZIP 20880
Property owners in ZIP code 20880 (Washington Grove, Maryland) pay a median of $6,008/year in property taxes on homes valued at $594,200. This translates to an effective tax rate of 1.01%, which is 5% above the Maryland state average of 0.96%.
The monthly property tax burden for a median-valued home in 20880 is approximately $501, which factors into escrow payments on mortgages. This ZIP code is located within Montgomery County. This is $2,034 more than the Maryland average of $3,974/year.
Compared to similar ZIP codes in Maryland, 20880 has higher property taxes. ZIP codes with similar effective rates include 21824 (1.01%) and 21817 (1.01%).
In Washington Grove, property taxes represent approximately 3.7% of the median household income of $160,417, providing context for the relative tax burden on homeowners in this area.
If you're considering purchasing a home in 20880, keep in mind that property taxes are based on the assessed value assigned by the local assessor, which may differ from the purchase price. In some states, properties are reassessed at or near the sale price upon transfer of ownership. For the most current tax information for a specific property, consult Montgomery County's tax assessor directly.
Frequently Asked Questions
What is the property tax rate in ZIP code 20880?
How much are property taxes in Washington Grove, MD (20880)?
How does ZIP 20880 compare to the Maryland average?
What is the median home value in ZIP 20880?
What county is ZIP code 20880 in?
Margin of Error
The median property tax estimate for this ZIP code has a margin of error of ±$261. ZCTA-level data has wider margins than county-level estimates due to smaller sample sizes.
County-Level Data
ZIP code 20880 is part of Montgomery County, Maryland. View the full county profile for broader context and more data.
View Montgomery County on TaxByCounty →Why compare these ZIPs?
Better comparison set for ZIP 20880
Each ZIP highlights a homebuyer tradeoff: lower rate, stronger value context, shared county rules, city boundary changes, or nearby missing data.
20839
Beallsville, MD
0.47 percentage points lower than ZIP 20880.
Rate
0.54%
Tax
$4,895
Quality
77
20838
Barnesville, MD
0.30 percentage points lower than ZIP 20880.
Rate
0.71%
Tax
$5,714
Quality
77
20837
Poolesville, MD
0.24 percentage points lower than ZIP 20880.
Rate
0.77%
Tax
$5,382
Quality
77
20862
Brinklow, MD
0.24 percentage points lower than ZIP 20880.
Rate
0.77%
Tax
$6,217
Quality
82
20818
Cabin John, MD
0.23 percentage points lower than ZIP 20880.
Rate
0.79%
Tax
$10,001
Quality
70
20886
Montgomery Village, MD
0.22 percentage points lower than ZIP 20880.
Rate
0.79%
Tax
$2,898
Quality
82
20853
Rockville, MD
0.22 percentage points lower than ZIP 20880.
Rate
0.79%
Tax
$4,813
Quality
89
20876
Germantown, MD
0.22 percentage points lower than ZIP 20880.
Rate
0.80%
Tax
$3,633
Quality
89
Data from U.S. Census Bureau, American Community Survey 2019-2023 5-Year Estimates (ZCTA level). ZIP Code Tabulation Areas (ZCTAs) are Census approximations of USPS ZIP codes.
Estimates are informational only and should not be used as financial or legal advice.