SIALIMStatistical Intelligence for America's Local Investment Markets

21530 — Flintstone, MD Home Values

Typical home value $231,807 as of August 2026 · 3rd of 19 in Cumberland, MD-WV

Typical value — August 2026
$231,807
observed, not a forecast
Past 12 months
+8.1%
trailing year-over-year change
Past 5 years
+23.1%
August 2021 to August 2026
Rank in metro
3rd
of 19 ZIP codes, by value

Blue: typical home value (Zillow ZHVI) in ZIP code 21530, August 2021 to August 2026. This page shows observed data only; no forecast.

How 21530 compares in the Cumberland, MD-WV area

ZIP code 21530 (Flintstone, MD) has a typical home value of $231,807 as of August 2026, ranking 3rd of 19 ZIP codes tracked in the Cumberland, MD-WV area, more expensive than about 89% of ZIP codes in the metro. Prices here have moved +8.1% over the trailing 12 months. Over the past five years, the typical value in this ZIP code has changed +23.1%, from $188,327 in August 2021 to $231,807 in August 2026.

Every figure above is observed Zillow data. Sialim's forecasting engine works at the metro level; see the Cumberland, MD-WV forecast for a modeled outlook, or browse the full ranked list of ZIP codes in Cumberland.

Population and demographics

ZIP code 21530 has a population of 1,481, per the Census Bureau's American Community Survey 5-year estimate. By race and ethnicity: 96.9% White, 2.1% Hispanic or Latino, 0.7% Black or African American, and 0.3% two or more races.

Nearby public schools

SchoolAddressDistance
Flintstone Elementary22000 National Pike Ne, Flintstone, MD1.8 mi
Washington Middle200 Massachusetts Ave, Cumberland, MD11 mi
Fort Hill High500 Greenway Ave, Cumberland, MD11 mi

Distance is straight-line from the ZIP code's center; driving distance will be longer. School attendance is set by district boundaries, not proximity. Confirm which school a specific address is zoned for with the local school district. Source: National Center for Education Statistics.

Frequently asked questions

What is the typical home value in ZIP code 21530?

$231,807 as of August 2026, the latest month Zillow has published observed data for.

Is 21530 an expensive ZIP code in the Cumberland, MD-WV area?

21530 ranks 3rd of 19 ZIP codes in the Cumberland, MD-WV area by typical home value, more expensive than about 89% of ZIP codes in the metro.

How much have home values in 21530 changed over the past year?

+8.1% over the trailing 12 months, from observed Zillow data.

What is the population of ZIP code 21530?

1,481, per the US Census Bureau's American Community Survey 5-year estimate.

What are the closest public schools to ZIP code 21530?

Flintstone Elementary (1.8 mi), Washington Middle (11 mi), Fort Hill High (11 mi), by straight-line distance from the ZIP code's center. School attendance is set by district boundaries, not proximity. Confirm assignment with the local school district.

Is this page showing a forecast for 21530?

No. Every number on this page is observed Zillow data as of August 2026, not a forecast. Sialim's forecasting engine runs at the metro level; see the Cumberland, MD-WV forecast for a modeled outlook.

ZIP-level values shown here are observed Zillow data, not forecasts. Sialim's forecasting engine works at the metro level today; ZIP-level forecasts are planned for Sialim Pro. Data © Zillow, via Zillow Research.