Zip Code 01742 — Concord, MA
01742 is a ZIP Code associated with Concord, MA, located within Middlesex. 01742 ranks #40 out of 81 ZIP codes in Middlesex County by population (and #142 out of 539 in MA). The area supports an estimated population of 18,448 residents across Data Pending housing units, with a population density of 295.2 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (42.462210, -71.365040)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 01742 |
| Primary City | Concord |
| State / Province | MA |
| County | Middlesex |
| Total Population | 18,448 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 295.2 people/sq mi |
| Timezone | America/New_York |
How 01742 Compares
| Metric | ZIP 01742 | Middlesex County | MA State Average |
|---|
| Population | 18,448 | 1,629,277 (Total) | 7,043,978 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 295.2 /sq mi | -- | -- |
| County Pop Rank | #40 of 81 | -- | -- |
Nearby ZIP Codes
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 →