Rockingham County · New Hampshire
ZIP code 03870
- Population
- 5,092
- Median income
- $127,772
- Median home
- $927,600
- Sales tax
- 0%
ZCTA residents
Household, past 12 months
Owner-occupied value
New Hampshire state rate
Quick answer
ZIP 03870 sits in Rockingham County, New Hampshire and is home to 5,092 people. Median household income is $127,772, the median home is worth $927,600 and median gross rent is $1,521. 80.5% of households own their home, and purchases are taxed at 0% (New Hampshire state rate).
- County
- Rockingham County
- State
- New Hampshire (NH)
- Area codes
- Not published
- Metro area
- Outside covered metros
FIPS 33015
246 ZIPs covered
No NANPA match for this ZIP
Rate jurisdiction used for tax
The numbers for 03870
American Community Survey 2019-2023 ACS 5-year estimates for this ZCTA.
- Population
- 5,092ZIP 03870 residents
- Median household income
- $127,772Past 12 months, inflation adjusted
- Median home value
- $927,600Owner-occupied units
- Median gross rent
- $1,521Rent plus utilities, monthly
- Median age
- 53.5 yrsAll residents
- Homeownership rate
- 80.5%Owner-occupied households
Sales tax in 03870
What a purchase inside this ZIP costs at checkout.
New Hampshire levies 0% statewide with no local add-ons. Check the county page for the local component before you quote a price.
Affordability in this ZIP
Derived from the Census medians above — indicative, not an offer.
A rent burden above 30% is the federal threshold for cost-burdened households, and a price-to-income multiple above 4× is generally considered a stretched housing market. The mortgage figure is principal and interest only — taxes, insurance and HOA dues are extra.
How 03870 compares
ZIP 03870 against the median ZIP in Rockingham County and across New Hampshire.
| Measure | ZIP 03870 | County median | State median | vs state |
|---|---|---|---|---|
| Median household income | $127,772 | $124,065 | $92,797 | +38% |
| Median home value | $927,600 | $464,100 | $339,600 | +173% |
| Median gross rent | $1,521 | $1,632 | $1,302 | +17% |
| Population | 5,092 | 5,668 | 2,738 | +86% |
Medians are computed across the 36 ZIP areas in Rockingham County and the 246 ZIP areas in New Hampshire.
Statewide rank
Where this ZIP places among all 246 New Hampshire ZIP areas.
- Income
- #38
- Home value
- #3
- Population
- #79
richer than 84% of 235 state ZIPs
above 99% of 238 state ZIPs
larger than 68% of 246 state ZIPs
Comparable ZIP codes
New Hampshire ZIP areas with almost the same household income.
Nearby ZIP codes
Other ZIP codes filed under Rockingham County.
ZIP 03870 questions
Common questions about this ZIP code.
- Where is ZIP code 03870?
- ZIP 03870 lies mostly in Rockingham County, New Hampshire. County assignment follows the largest share of land area, so a ZIP straddling a county line is filed under its dominant county.
- What sales tax do I pay in 03870?
- New Hampshire charges 0% statewide.
- Is 03870 expensive to live in?
- Median rent runs $1,521 a month, about 14% of median household income, and the median home is worth $927,600 — +173% against the typical New Hampshire ZIP.
- Is a ZCTA the same as a postal ZIP code?
- Not exactly. The Census builds ZIP Code Tabulation Areas from the ZIP codes of addresses inside each census block, so a ZCTA can differ slightly from the USPS delivery route of the same number, and PO-box-only ZIPs have no ZCTA at all.
Keep going
Related pages for this area.
Sources & transparency
- US Census Bureau, ACS 2019-2023 5-year estimates — 2019-2023 ACS 5-year — population, income, housing
- Census 2020 ZCTA-to-county relationship file — County assignment by largest land-area overlap
- New Hampshire Department of Revenue Administration — Sales tax rates and local add-ons
Last reviewed December 2024. Figures are published for reference and can change; verify with the source agency before filing or contracting. How we build and check this data.