US Census Data

ZIP Code 03231

ZIP Code Tabulation Area in Merrimack County, New Hampshire.

Population
80
-73.8%’19–’23
Median household income
$141,875
+73.7%’19–’23

ZIP Code 03231 is a ZIP Code Tabulation Area in Merrimack County, New Hampshire, home to about 80 residents. Its median household income of $141,875 runs above the Merrimack County figure of $93,944.

From 2019 to 2023, ZIP Code 03231's population declined 73.8% from 305 to 80, while its median household income rose 73.7% from $81,667 to $141,875.

15.0% of adults 25 and older hold a bachelor's degree or higher. Owners occupy 91.2% of the area's occupied homes.

Demographics

ACS 2019–2023
Population
80
Median age
59.5 yrs
Median household income
$141,875
Median home value
Median gross rent
Housing units
47
Homeownership rate
91.2%
Bachelor's degree or higher
15.0%
Unemployment rate
0.0%

Trends

ACS 5-year · 2019–2023
Population
30580
Median household income
$81,667$141,875
Median home value
$303,500$332,100
YearPopulationMedian household incomeMedian home value
2019305$81,667$303,500
2020226$81,875$307,900
2021138$90,804$332,100
2022110$135,625
202380$141,875

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

CountShare
Under 500.0%
5 to 1700.0%
18 to 2400.0%
25 to 341721.3%
35 to 4400.0%
45 to 541620.0%
55 to 641417.5%
65 to 7456.3%
75 and over2835.0%

Race & ethnicity

CountShare
White (non-Hispanic)80100.0%
Black or African American00.0%
American Indian & Alaska Native00.0%
Asian00.0%
Native Hawaiian & Pacific Islander00.0%
Some other race00.0%
Two or more races00.0%
Hispanic or Latino (any race)00.0%

Educational attainment (age 25+)

CountShare
No high school diploma00.0%
High school graduate4758.8%
Some college or associate's2126.3%
Bachelor's degree00.0%
Graduate or professional degree1215.0%

Commute to work

How workers get to work

CountShare
Drove alone00.0%
Carpooled47100.0%
Public transit00.0%
Walked00.0%
Bicycle00.0%
Worked from home00.0%
Other means00.0%

Travel time

CountShare
Under 15 min00.0%
15 to 29 min00.0%
30 to 44 min00.0%
45 to 59 min47100.0%
60+ min00.0%

Households

Average household size
2.35
Poverty rate
3.8% (3 of 80)
CountShare
Family households2676.5%
Nonfamily households823.5%

Housing

Median year structure built
1938

Occupancy

CountShare
Occupied3472.3%
Vacant1327.7%

Tenure (of occupied units)

CountShare
Owner-occupied3191.2%
Renter-occupied38.8%

Units in structure

CountShare
1-unit, detached47100.0%
1-unit, attached00.0%
2 to 4 units00.0%
5 to 19 units00.0%
20 or more units00.0%
Mobile home & other00.0%

Geography

ZCTA
03231
Land area
0.29 sq mi
Water area
0.33 sq mi
Center point
43.4509, -71.7541

Counties this ZIP covers

1

Compare with nearby ZIP codes

6

National ZIP rankings

21

Nearby ZIP codes

16