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Columbia CDP, MD

ZIP 21045 — Housing & Real Estate

Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.

Upper Middle ClassLow Snow AreaRemote Work Hub

Home values, rent, tenure, and housing stock

Housing & Real Estate in ZIP Code 21045

Median Home Value
$438,500
Median Rent
$1,592
Affordability Snapshot
$121,000
Est. income to buy

Household income needed for a median home under a 20% down / 6.8% illustrative mortgage model (~$2,817/mo PITI).

16%
Rent-to-Income Ratio

Below the 30% threshold — generally affordable for median earners.

3.7x
Home Price-to-Income Ratio

Within the typical 3-5x range for home affordability.

23.0 yrs
Price-to-Rent Ratio

Years to break even buying vs renting at median home value and rent.

To comfortably buy a median-priced home in ZIP 21045 in Columbia CDP, MD, a household would need roughly $121,000 in annual income under a 20% down, 30-year loan at 6.8% (illustrative), keeping housing costs near 28% of income. Estimated monthly PITI is about $2,817. That is roughly in line with the local median household income ($117,323). Rates, taxes, insurance, and HOA fees vary — treat this as a planning estimate, not a lender quote.

Housing Tenure

Owner-occupied majority; balanced tenure mix.

Heating Fuel
Housing Metrics
Owner Occupied
69.0%+5% vs US avg
x
Vacancy Rate
2.9%-72% vs US avg
x
Broadband Access
95.2%+9% vs US avg
x
4+ Bedrooms
6.3%-57% vs US avg
x
Built Pre-1939
0.3%-98% vs US avg
x
Built Post-2014
0.0%
x
Rent Burden >30%
17.6%-65% vs US avg
x
Mortgage-Free
24.1%-37% vs US avg
x
$438,500
Home Value
$1,592
Rent
1979
Year Built
2012
Moved In

Residents have lived here since ~2012 on average

Housing Structure

Census ACS structure types (single-family, multi-unit, etc.).

  • 1-unit detached43.4%
  • 1-unit attached28.8%
  • 2-9 units8.0%
  • 10+ units19.6%
  • Mobile home & other0.3%

Housing & Real Estate key statistics

Housing statistics
Housing
Median home value$438,500
Median rent$1,592
Owner-occupied69.0%
Vacant2.9%
Price-to-income3.7x
Est. income to buy$121,000