Zip Code 21156 — Upper Falls, MD

ZIP Code 21156 is associated with Upper Falls, MD, in Baltimore County. The listed population estimate is 204; estimated density is 75.0 people per square mile. Among records with population estimates, it ranks #59 of 65 in Baltimore County and #428 of 470 in MD.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (39.437520, -76.397000)

Data MetricLocal Statistic
Postal / Zip Code21156
Primary CityUpper Falls
State / ProvinceMD
CountyBaltimore
Total Population204
Population Density75.0 people/sq mi
TimezoneAmerica/New_York

How 21156 Compares

MetricZIP 21156Baltimore County recordsMD records
Population estimate2041,414,366 (sum)6,205,597 (sum)
Population Density75.0 /sq mi----
County population rank#59 of 65----
State population rank#428 of 470----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in MD

ZIP CodeCityDistancePopulation estimate
ZIP 21087Kingsville1.2 mi5,537
ZIP 21085Joppa2.2 mi17,307
ZIP 21162White Marsh3.2 mi4,639
ZIP 21128Perry Hall3.4 mi15,501
ZIP 21051Fork3.9 mi172

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →