New London, NH 03257 ZIP Code Profile

Related Place Profiles:
New London, NH | Sutton, NH

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ZIP Code 03257: Basic Data & USPS Preferred City Name

Preferred Name, USPS
New London, NH 03257

Not Acceptable, USPS
Sutton, NH 03257

  • ZIP Code Type: STANDARD
  • County: Merrimack County
  • Centroid: Latitude 43.419, Longitude -71.993
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes

ZIP Code 03257 has segments in 2 Counties (Merrimack, Sullivan).

  • Businesses Addresses: 322
  • PO Box Addresses: 1,131
  • Residential Addresses: 1,171
    • Multi-Family Addresses: 228
    • Single Family Addresses: 943

The ZIP Code maps and database are updated 4 times per year.
Database updated: February 1, 2018, Maps updated: February 1, 2018.

EXTREMELY LOCAL Demographic Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting demographic data.


03257 ZIP Code Map

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New London, NH 03257 Data & Demographics (As of July 1, 2017)


Total Population 4,854
Daytime Population: Workers 3,670
Daytime Population: Residents 3,026
Total Daytime Population (TDP) 6,696
Ratio TDP/Total Population1 1.38
Population in Households 3,832
Population in Familes 2,974
Population in Group Qrtrs 1,022
Population Density2 199
Diversity Index3 12


Median Household Income $76,732
Average Household Income $113,743
Per Capita Income $45,380


Total Housing Units 2,429 (100%)
Owner Occupied HU 1,456 (59.9%)
Renter Occupied HU 380 (15.6%)
Vacant Housing Units 593 (24.4%)
Median Home Value $408,268
Average Home Value $487,998


Total Households 1,836
Average Household Size 2.09
Family Households 1,127
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 1.49% 0.91%
Households 1.52% 1.21%
Families 1.32% 1.08%
Median Household Income   2.18%
Per Capita Income   2.16%

New London, NH 03257 - Peer Comparisons by Rank and Percentile

The table below compares 03257 to the other 243 ZIP Codes in New Hampshire by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 82 67th
Population Density # 75 70th
Diversity Index # 77 69th
Median Household Income # 79 68th
Per Capita Income # 32 87th

Additional comparisons and rankings can be made with a VERY EASY TO USE New Hampshire Census Data Comparison Tool.

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