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Zip Code 07042 — Montclair, NJ

ZIP Code 07042 is associated with Montclair, NJ, in Essex County. The listed population estimate is 27,326; estimated density is 2,795.1 people per square mile. Among records with population estimates, it ranks #17 of 31 in Essex County and #113 of 595 in NJ.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (40.813820, -74.217750)

Data MetricLocal Statistic
Postal / Zip Code07042
Primary CityMontclair
State / ProvinceNJ
CountyEssex
Total Population27,326
Population Density2,795.1 people/sq mi
TimezoneAmerica/New_York

How 07042 Compares

MetricZIP 07042Essex County recordsNJ records
Population estimate27,326863,415 (sum)9,343,809 (sum)
Population Density2,795.1 /sq mi----
County population rank#17 of 31----
State population rank#113 of 595----

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 NJ

ZIP CodeCityDistancePopulation estimate
ZIP 07028Glen Ridge1.0 mi8,022
ZIP 07003Bloomfield1.6 mi53,771
ZIP 07044Verona1.8 mi14,545
ZIP 07043Montclair2.3 mi13,256
ZIP 07052West Orange2.9 mi48,620

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 →