U.S. ZIP Code · MD21723
Howard County · Baltimore-Columbia-Towson, MD
Appreciation
- 1-year
- +0.6%
- 5-year / yr
- +4.6%
- 10-year / yr
- +4.0%
Relative price
- vs U.S.
- +228.4%
- vs metro
- +91.3%
- vs state
- +107.1%
Price history
Zillow Home Value Index — monthly, smoothed and seasonally adjusted.
The typical home in 21723 is worth $932,985 — 91.3% above the Baltimore-Columbia-Towson, MD median. Over the past year, values have risen 0.6%.
#Rent & investment
Typical asking rent, and the returns it implies at the current home value.
#Property tax
Effective rate — total real estate taxes paid relative to total home value.
#Climate risk
FEMA National Risk Index ratings for Howard County. "Not Applicable" means the hazard does not threaten the county.
- Overall risk
- Relatively Low[4]
- Riverine flood
- Relatively Moderate
- Coastal flood
- Very Low
- Wildfire
- Very Low
- Drought
- Relatively Moderate
- Heat wave
- Relatively Moderate
- Hurricane
- Relatively Low
- Tornado
- Relatively Low
- Earthquake
- Relatively Low
- Winter weather
- Relatively High
#Who lives here
#Migration
Household moves in and out of Howard County over a year, from IRS tax-return data.
- Net migration
- -1,203[5]
- Moved in
- 11,543
- Moved out
- 12,746
Run the numbers
Interactive calculators pre-filled with this ZIP's typical home value, rent, and property-tax rate. Edit any field to recompute.
Gross and net yield are estimates based on the inputs and the selected expense ratio. Actual income and expenses will vary by property and market. Not investment advice.
Estimated monthly payments include principal and interest only. Actual costs will include property tax, insurance, possibly PMI, and HOA fees not modeled here. Loan terms shown are estimates; consult a licensed lender for current rates and qualification.
This calculator projects multi-year scenarios based on assumptions about appreciation, rent growth, and investment returns — none of which are guaranteed. Actual outcomes depend on variables this tool cannot know. Not financial or real estate advice.
#Metro ranking
Where this ZIP sits among others in its metro area.
Frequently asked
- How much is a home worth in ZIP code 21723?
- The typical home in 21723 is worth $932,985, based on the Zillow Home Value Index.
- Are home values rising in 21723?
- Home values in 21723 are up 0.6% over the past year, and up 4.6% a year over five years.
- Who lives in 21723?
- ZIP code 21723 has a population of 669 and a median household income of $241,250.
#Comparable ZIPs
Same metro, nearest typical home value. Each card shows the comparable ZIP's headline numbers so you can scan at a glance.
Riva CDP, MD
- Typical home
- $970,734
- Gross yield
- —
Fulton CDP, MD
- Typical home
- $996,600
- Gross yield
- —
MD
- Typical home
- $997,048
- Gross yield
- —
Highland CDP, MD
- Typical home
- $1,001,004
- Gross yield
- —
MD
- Typical home
- $1,023,761
- Gross yield
- —
MD
- Typical home
- $1,041,384
- Gross yield
- —
Want similar ZIPs from outside this metro? Browse nationally similar ZIPs →
Compare ZIPs
Pit ZIP 21723 against any other ZIP — full side-by-side table.
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