01831 ZIP Code — Haverhill, MA
Essex County, Massachusetts
ZIP code 01831 is located in Haverhill, Massachusetts, within Essex County. It covers approximately 0.00 square miles and serves a population of 0 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 978.
0
population
0.00
sq mi land
Standard
ZIP type
Eastern (ET)
timezone
01831 ZIP code map
Cities in ZIP code 01831
Below are the cities the US Postal Service accepts for ZIP code 01831. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Haverhill | Acceptable |
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 0 |
| Population density | 0 / sq mi |
| State FIPS | 25 |
| County FIPS | 009 |
| Geography | |
|---|---|
| Land area | 0.00 sq mi |
| Water area | 0.00 sq mi |
| Latitude | 42.7763 |
| Longitude | -71.0778 |
| Timezone | Eastern (ET) |
| Area code | 978 |