PlainZIP

Sandown, NH · standard

ZIP Code 03873

Rockingham County, New Hampshire - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

5,711
166/sq mi
$135,040
Median income
$483,400
Median home value
34.1%
Bachelor's or higher

The verdict

Sandown pairs a top-decile household income with upper-quartile home values, in a rural, homeowner-dominated area.

Top 6%
household income, US ZIPs
Top 14%
home value, US ZIPs
166
people per sq mi
83%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 03873 against every reporting US ZIP.

ZIP code 03873 is a mid-sized community (a standard USPS delivery area) in Sandown, Rockingham County, New Hampshire, home to 5,711 residents across 34.5 square miles, a density of 166 people per square mile, in the New York time zone.

ZIP 03873 skews affluent, with a median household income of $135,040 (32% above the New Hampshire average), while per-capita income is $55,640. The poverty rate stands at 10.8% and the unemployment rate at 4.9%. Median home value sits at $483,400 (19% above the state average), median rent at $1,893 a month, and owner-occupancy at 82.5%.

A solid share of residents have a four-year degree: 34.1% of adults hold a bachelor's degree or higher, the median age is 40.8, and the average commute is 33 minutes. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Rockingham County, so you can benchmark 03873 against its immediate geography rather than a national average alone.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 03873

Top 5 sectors by establishment count in Sandown, NH

Which industries have the most business establishments in ZIP 03873.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 03873, Sandown, NH · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

5,711

Population

34.5

Area (sq mi)

166

People / sq mi

New York

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 03873?

40.8

Median Age

43.9%

Male

56.1%

Female

4.0%

Foreign-Born

White 95.0%
African American 0.4%
Asian 0.5%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 2.5%
Hispanic or Latino 1.2%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$135,040

Median Household Income

+32% vs state

$55,640

Per Capita Income

10.8%

Poverty Rate

4.9%

Unemployment Rate

33.4 min

Mean Commute Time

How ZIP 03873 ranks nationally

Sandown, NH household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$135,040 Top 6% higher than 94% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Below this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Below this entry. $120,000–$140,000: 1,362 US ZIPs (4%). This entry sits in this band. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 64.4%
Bachelor's Degree or Higher 34.1%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

2,398

Total Housing Units

2,348

Occupied Units

50

Vacant Units

2.82

Avg Household Size

Occupancy Type

Owner 82.5%
Renter 17.5%

$483,400

Median Home Value

+19% vs state

$1,893

Median Rent

1986

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

+11.2%

YoY Change (2024)

303

HPI Index (2000 = 100)

+203%

Total Change Since 2000

Home values in ZIP 03873 have increased 11.2% over the past year (2024). Since 2000, this ZIP has seen +203% cumulative appreciation.

Year Annual Change HPI Index
2020 +5.0% 188
2021 +12.8% 213
2022 +18.3% 252
2023 +8.2% 272
2024 +11.2% 303

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 72 business establishments in ZIP 03873, employing approximately 310 people with a combined annual payroll of $13,650,000.

72

Businesses

310

Employees

$13.7M

Annual Payroll

8

Industry Sectors

Industry Establishments % of Total
Construction 27 37.5%
Professional, scientific, and technical services 8 11.1%
Other services (except public administration) 8 11.1%
Administrative and support and waste management and remediation services 7 9.7%
Manufacturing 5 6.9%
Arts, entertainment, and recreation 4 5.6%
Retail trade 3 4.2%
Health care and social assistance 3 4.2%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 03873 vs 03841 →

ZIP 03873 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 03873 ranks #7 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 03873 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 03873 ranks #3 of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
03841 Hampstead, NH 6,334 3.5 mi
03819 Danville, NH 4,377 3.1 mi
03826 East Hampstead, NH 2,470 4.1 mi
03036 Chester, NH 4,782 4.2 mi
03044 Fremont, NH 4,263 4.7 mi
03077 Raymond, NH 10,155 6.9 mi
03811 Atkinson, NH 6,753 6.8 mi
03848 Kingston, NH 6,020 6.0 mi
03038 Derry, NH 33,269 5.9 mi
03865 Plaistow, NH 7,609 7.8 mi

More ZIP Codes in Rockingham County

03038 standard
Derry, NH
Pop: 33,269
03079 standard
Salem, NH
Pop: 28,776
03053 standard
Londonderry, NH
Pop: 23,957
03801 standard
Portsmouth, NH
Pop: 21,532
03833 standard
Exeter, NH
Pop: 20,955
03842 standard
Hampton, NH
Pop: 15,345

Related Areas

Rockingham County Sandown, NH New Hampshire

Frequently Asked Questions

What county is ZIP code 03873 in? ▼
ZIP code 03873 (Sandown) is located in Rockingham County, New Hampshire. Rockingham County contains multiple ZIP codes, see the full list at /counties/rockingham-nh.
What is the population of ZIP code 03873? ▼
ZIP code 03873 in Sandown, NH has a population of 5,711 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 03873? ▼
The median household income in ZIP 03873 is $135,040, which is 77% above the national average of $76,288.
What is the average home value in ZIP 03873? ▼
The median home value in ZIP 03873 is $483,400, which is 74% above the national average of $278,155.
What is the demographic makeup of ZIP 03873? ▼
The largest racial group in ZIP 03873 is White at 95.0%. Hispanic or Latino residents make up 1.2% of the population.
How many businesses are in ZIP code 03873? ▼
ZIP code 03873 has 72 business establishments employing approximately 310 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 03873? ▼
The top industries by establishment count in ZIP 03873 are: Construction (27), Professional, scientific, and technical services (8), Other services (except public administration) (8). There are 8 industry sectors represented in total.
How have home values changed in ZIP code 03873? ▼
According to the FHFA House Price Index, home values in ZIP 03873 increased by 11.2% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 203%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 03873? ▼
In ZIP code 03873, 64.4% of residents aged 25+ have a high school diploma or higher, and 34.1% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 03873? ▼
The mean commute time for workers in ZIP code 03873 is 33.4 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend more time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 03873? ▼
In ZIP code 03873, approximately 82.5% of occupied housing units are owner-occupied and 17.5% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 03873? ▼
The poverty rate in ZIP code 03873 is 10.8% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.