Portsmouth, NH 03801 ZIP Code Profile

Related Place Profiles:
Newington, NH | Portsmouth, NH

ZIP Code 03801: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Portsmouth, NH 03801

Acceptable Alternative
Newington, NH 03801

  • ZIP Code Type: STANDARD
  • County: Rockingham County
  • Centroid: Latitude 43.067, Longitude -70.784
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes
  • Businesses Addresses: 2,449
  • PO Box Addresses: 0
  • Residential Addresses: 11,119
    • Multi-Family Addresses: 2,766
    • Single Family Addresses: 8,353

The ZIP Code maps and database are updated 4 times per year.
Database updated: May 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.


03801 ZIP Code Map

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Portsmouth, NH 03801 Data & Demographics (As of July 1, 2017)


Total Population 22,547
Daytime Population: Workers 38,346
Daytime Population: Residents 8,643
Total Daytime Population (TDP) 46,989
Ratio TDP/Total Population1 2.08
Population in Households 21,634
Population in Familes 13,810
Population in Group Qrtrs 913
Population Density2 941
Diversity Index3 29


Median Household Income $66,230
Average Household Income $91,041
Per Capita Income $44,048


Total Housing Units 11,427 (100%)
Owner Occupied HU 5,258 (46.0%)
Renter Occupied HU 5,395 (47.2%)
Vacant Housing Units 774 ( 6.8%)
Median Home Value $360,409
Average Home Value $407,051


Total Households 10,653
Average Household Size 2.03
Family Households 5,008
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 0.64% 0.41%
Households 0.46% 0.51%
Families 0.17% 0.33%
Median Household Income   3.27%
Per Capita Income   3.29%

Portsmouth, NH 03801 - Peer Comparisons by Rank and Percentile

The table below compares 03801 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 # 14 95th
Population Density # 17 93rd
Diversity Index # 13 95th
Median Household Income # 114 53rd
Per Capita Income # 39 84th

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

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