California-Lexington Park, MD · Maryland
St. Mary's County
ZIP 20628
114,372 residents278 permits TTM$114,580 median HHI26 ZIP codesUpdated April 16, 2026
Investor first look
Median home value
$390,900
ACS 5-Year
Cap rate proxy
5.2%
FMR × 0.65 ÷ Home Value
Rent-to-income
17.7%
HUD FMR ÷ ACS HHI
Net migration
+1.53%
IRS SOI
Permits (TTM)
278
Census BPS
Climate risk
42.6
FEMA NRI (0–100)
ZIP 20628
Median home value
—
Gross yield
—
Cap rate
5.2%
Rent gap
—
Affordability
P/I: 4.2R/I: —
Section 8 detail
SAFMR: —Rent: —Gap: —
ZIP code breakdown26 ZIP codes
| ZIP | Median home value | Rent (FMR 2BR) | Gross yield | Cap rate | Rent gap |
|---|---|---|---|---|---|
| 20618 | — | — | — | 5.2% | — |
| 20621 | — | — | — | 5.6% | — |
| 20634 | — | — | — | 6.9% | — |
| 20687 | — | — | — | 5.2% | — |
| 20667 | — | — | — | 5.2% | — |
Ranked by composite score
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Demographics
Owner-occupied
72.6%
Census ACS
Vacancy rate
9.4%
Census ACS
Bachelor's degree +
35.1%
Census ACS
Rent burdened
42.1%
Census ACS (>30% income)
Median age
37.0
Census ACS
U.S. Census Bureau — American Community Survey 5-Year Estimates
U.S. Census Bureau — Building Permits Survey
U.S. Department of Housing and Urban Development — Fair Market Rents / Small Area Fair Market Rents (SAFMR)
Internal Revenue Service — Statistics of Income Migration Data
FEMA — National Risk Index
Last updated: April 16, 2026