Zip Code 07066 — Clark, NJ

ZIP Code 07066 is associated with Clark, NJ, in Union County. The listed population estimate is 15,622; estimated density is 1,377.9 people per square mile. Among records with population estimates, it ranks #16 of 26 in Union County and #215 of 595 in NJ.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (40.620610, -74.313350)

Data MetricLocal Statistic
Postal / Zip Code07066
Primary CityClark
State / ProvinceNJ
CountyUnion
Total Population15,622
Population Density1,377.9 people/sq mi
TimezoneAmerica/New_York

How 07066 Compares

MetricZIP 07066Union County recordsNJ records
Population estimate15,622602,051 (sum)9,343,809 (sum)
Population Density1,377.9 /sq mi----
County population rank#16 of 26----
State population rank#215 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 07065Rahway1.9 mi30,109
ZIP 07067Colonia1.9 mi18,587
ZIP 07027Garwood2.2 mi4,885
ZIP 07016Cranford2.6 mi24,074
ZIP 07090Westfield2.7 mi31,111

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 →