What ZIP codes serve Catonsville, MD?

Catonsville, MD is served by the following ZIP codes: 21043, 21227, 21228, 21229, 21250.

What is the average temperature in Catonsville?

In Catonsville, MD, the average annual high temperature is 67°F and the average low is 49°F, with 44.2 inches of annual precipitation.

How do I verify a Catonsville address?

Use MailColt's free address verification tool to instantly check any Catonsville, MD address for deliverability. Enter the street address, city, state, and ZIP code to get a confidence score and standardized formatting.

Home / Locations / Maryland / Catonsville

Verify Catonsville, MD Addresses

Check any address in Catonsville, Maryland for deliverability. Get instant verification with confidence scores.

Catonsville is the #11 city in Maryland by population, with a population of 179,934 across 5 ZIP codes. Average temperatures range from 49.0°F to 66.9°F, with 44.2" of annual precipitation. With 605 establishments, Professional Services is the dominant industry.

ZIP Codes

Verify Address in Catonsville

Check if a Catonsville, MD address is valid and deliverable.

Verify Catonsville Address

Income by ZIP Code in Catonsville, MD

ZIP Code	Population	Median Income	Median Home Value	Median Rent
21043	47,134	$141,846	$607,300	$1,964
21227	35,695	$83,620	$272,400	$1,347
21228	49,417	$107,714	$389,200	$1,631
21229	44,687	$55,457	$184,900	$1,210
21250	3,001	-	-	-

Climate in Catonsville, MD

Average monthly temperatures and precipitation.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg High	44°	47°	55°	67°	76°	85°	90°	87°	80°	69°	57°	48°
Avg Low	28°	30°	37°	46°	56°	66°	71°	69°	62°	50°	40°	33°
Precip	3.1"	2.8"	4.0"	3.5"	3.6"	3.6"	4.6"	4.2"	4.5"	3.7"	3.0"	3.7"
Snow	2.6"	3.0"	1.1"	-	-	-	-	-	-	-	0.0"	1.0"

Top Industries in Catonsville, MD

Industry	Establishments
Professional, scientific, and technical services	605
Health care and social assistance	570
Retail trade	422
Other services (except public administration)	354
Accommodation and food services	322
Construction	302
Administrative and support and waste management and remediation services	198
Wholesale trade	183
Real estate and rental and leasing	174
Finance and insurance	146

Historic Landmarks in Catonsville

Catonsville has 12 properties listed on the National Register of Historic Places, including:

Catonsville Historic District, Old — Bet. Edmondson, Frederick, Melvin and Smithwood Aves.
Central Catonsville and Summit Park Historic District — Bet. Frederick Rd., S. Rolling Rd. and Mellor Ave.
Hilton — 800 S. Rolling Rd.
Mount de Sales Academy — 700 Academy Rd.
Old Catonsville High School — 20 Winters Ln.
Old Salem Church and Cemetery — Ingleside Ave. and Calverton St.
Patterson Viaduct Ruins — S of Catonsville at Patapsco River
St. Charles College Historic District — 711 Maiden Choice Lane
St. Charles College Historic District (Boundary Increase) — 711 Maiden Choice La.
Summit — 10 Stanley Dr.

All 5 ZIP Codes Serving Catonsville, MD

Other Cities in Maryland

Baltimore Rockville Columbia Woodlawn Woodlawn

How to Verify a Catonsville, MD Address

Our verification checks:

Street name and number validity
ZIP code accuracy for Catonsville
Address deliverability status
USPS-standard formatting