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ZIP Code Database - Facts & Stats

Data Last Updated: March 1, 2023

Zip Code 03878, Somersworth, NH

ZIP Code 03878 Details

Zip Code:03878
State:NH [New Hampshire]
Multi County:No
City Alias(es):Somersworth
Area Code:603
City Type:P [Post Office]
Classification: [Non-Unique]
Time Zone:Eastern (GMT -05:00)
Observes Daylight Saving:Yes
Elevation:209 ft
State FIPS:33
County FIPS:017
Division:New England
Intro Date:<2004-10

ZIP Code 03878 2010 Census Demographics

Current Population:13,208
2010 Population:11,824
Households per ZIP Code:4,888
Average House Value:$226,100
Avg. Income Per Household:$68,909
Persons Per Household:2.42
White Population:10,872
Black Population:289
Hispanic Population:297
Asian Population:680
American Indian Population:161
Hawaiian Population:12
Other Population:143
Male Population:5,641
Female Population:6,183
Median Age:37.90 years
Male Median Age:37.10 years
Female Median Age:38.70 years

ZIP Code 03878 Other Demographics

# Residential Mailboxes:5,458
# Business Mailboxes:360
Total Delivery Receptacles:5,965
Number of Businesses:299
1st Quarter Payroll:$55,657,000
Annual Payroll:$219,488,000
# of Employees:5,240
Water Area:0.196 sq mi
Land Area:9.815 sq mi
118th Congressional District:01
118th Congressional Land Area:2463.65 sq mi
Single Family Delivery Units:3,740
Multi Family Delivery Units:884
# Residential Mailboxes:5,458
# Business Mailboxes:360
Total Delivery Receptacles:5,965

ZIP Code 03878 Social Security Benefits

  2018 2019 Delta
Total Beneficiaries: 2,500 2,500 0
Retired Workers: 1,520 1,520 0
Disabled Workers: 610 610 0
Widow(er)s and Parents: 105 105 0
Spouses: 50 50 0
Children: 215 215 0
65+: 1,595 1,595 0
Monthly Benefits - All: $3,229,000 $3,229,000 $0
Monthly Benefits - Retired Workers: $2,191,000 $2,191,000 $0
Monthly Benefits - Widow(ers): $136,000 $136,000 $0

ZIP Code 03878 Statistical Areas

CBSA: 14460
CBSA Name: Boston-Cambridge-Newton, MA-NH
CBSA Type: Metro
CBSA Division: 40484
CBSA Division Name: Rockingham County-Strafford County, NH
CBSA Population:4,552,402
CBSA Division Population:418,366
MSA: 1122
MSA Name: Boston-Worcester-Lawrence, MA-NH-ME-CT CMSA
PMSA: 6450
PMSA Name: Portsmouth-Rochester, NH-ME PMSA
City State Key:V25719
Preferred Last Line Key:V25719
03875: Previous ZIP Code
Next ZIP Code: 03882


  1. U.S. Postal Service [Last Updated: 3/1/2023],
  2. Internal Data Creation [Last Updated: 3/1/2023],
  3. U.S. Geological Survey [Updated as needed],
  4. U.S. Census [Updated Yearly],
  5. U.S. Census American National Standards Institute (ANSI) [Last Updated: 3/1/2023],
  6. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010],
  7. Centers for Medicare & Medicaid Services [Updated Yearly],