Residential delivery area · New Hampshire
ZIP Code 03872: Sanbornville, NH
ZIP code 03872 uses the postal name Sanbornville, New Hampshire and lies entirely in Carroll County (Census 2020 ZIP-county file). About 4,400 people live there (Census Bureau, ACS 2020-2024). Median household income is $109,583 (Census Bureau, ACS 2020-2024). By Census place, 3% of its land lies in Sanbornville (a census-designated place); 97% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Sanbornville · its only residential ZIP
- County
- Carroll County
- Census places
- Sanbornville census-designated place
- House district
- NH-1 119th Congress
- State
- New Hampshire
- Time zone
- Eastern
- Land area
- 52.0 sq mi · 85 people per sq mi
Where is ZIP code 03872?
03872 centers on 43.571°, -71.043° and covers 52.0 square miles of land plus 4.2 of water. It borders 8 ZIP codes: 03830, 04001, 03852, 03887, 03894, 03864, 03855, 03851.
The map draws ZIP code areas only. For the streets inside 03872, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 03872 compare with the rest of Carroll County?
| Measure | 03872 | In Carroll County | In NH |
|---|---|---|---|
| People (ACS 2020-2024) | 4,438 | 3rd of 30 | 92nd of 247 |
| Median household income | $110k | 1st of 12 | 59th of 158 |
| Median home value | $334k | 11th of 16 | 134th of 191 |
Its median household income is higher than in 86% of U.S. residential ZIP codes, and it is denser than 51% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 03872?
The 2020 Census counted 3,981 people in 03872; the ACS, which samples households over 2020-2024, estimates 4,438. Between the 2010 and 2020 censuses its population grew 4.5% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 4,438±506 (90% margin)
- 2020 Census count
- 3,981+4.5% since 2010 (3,809)
- Households
- 1,584
- Median age
- 49.5
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 03872?
Of the 4,438 people the ACS estimates in 03872, 19.0% are under 18 and 19.2% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (96.9%).
- Under 1819.0%
- 18 to 6461.8%
- 65 and older19.2%
- White, not Hispanic96.9%
- Hispanic or Latino2.2%
- Other or two or more0.8%
- Asian, not Hispanic0.1%
- Black, not Hispanic0.0%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 03872 earn?
Median household income is $109,583 (ACS 2020-2024), the highest of the 12 ranked ZIP codes in Carroll County. It is not measurably different from 2015-2019 ($102,573 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $109,583±$23,414
- Income per person
- $46,556
- Below the poverty line
- 6.6%
- Unemployed (of the labor force)
- 2.8%
- Adults 25+ with a bachelor's degree
- 29.9%
- Adjusted gross income per tax return, 2022
- $84,6292,220 returns; wages 63% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 03872?
FHFA's house price index for 03872, built from repeat sales and appraisals of the same homes, rose 112% from 2015 to 2025 and rose 56% from 2020 to 2025, and moved +5.1% in 2025.
- Median home value (owners' estimate)
- $334,400
- Median gross rent
- –
- Homes owned by their occupants
- 96.8%
- Housing units
- 2,478
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 03872?
79 business establishments had a location in this ZIP code in 2023, 3 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction14
- Accommodation and food services12
- Retail trade9
- Administrative and support and waste management and remediation services7
- Health care and social assistance7
- Other services (except public administration)7
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 03872?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 03830 | East Wakefield | 1,381 | $100k | 3.9 mi |
| 04001 | Acton, ME | 2,721 | $79k | 5.7 mi |
| 03852 | Milton Mills | 205 | $155k | 6.0 mi |
| 03887 | Union | 1,739 | $92k | 6.2 mi |
| 03894 | Wolfeboro | 6,554 | $94k | 7.3 mi |
| 03864 | Ossipee | 2,131 | $105k | 8.8 mi |
| 03855 | New Durham | 2,748 | $100k | 9.2 mi |
| 03851 | Milton | 4,333 | $93k | 9.3 mi |
| 04095 | West Newfield, ME | 1,480 | $57k | 7.6 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.