Residential delivery area · New Hampshire
ZIP Code 03861: Lee, NH
ZIP code 03861 uses the postal name Lee, New Hampshire and lies entirely in Strafford County (Census 2020 ZIP-county file). About 4,600 people live there (Census Bureau, ACS 2020-2024). Median household income is $131,579 (Census Bureau, ACS 2020-2024). Its land lies outside any incorporated or census-designated place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Lee · its only residential ZIP
- County
- Strafford County
- Metro area
- Boston-Cambridge-Newton, MA-NH
- House district
- NH-1 119th Congress
- State
- New Hampshire
- Time zone
- Eastern
- Land area
- 19.7 sq mi · 232 people per sq mi
Where is ZIP code 03861?
03861 centers on 43.119°, -71.007° and covers 19.7 square miles of land plus 0.2 of water. It borders 6 ZIP codes: 03824, 03857, 03823, 03042, 03290, 03825.
The map draws ZIP code areas only. For the streets inside 03861, 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 03861 compare with the rest of Strafford County?
| Measure | 03861 | In Strafford County | In NH |
|---|---|---|---|
| People (ACS 2020-2024) | 4,576 | 8th of 16 | 88th of 247 |
| Median household income | $132k | not ranked | not ranked |
| Median home value | $481k | 2nd of 15 | 39th of 191 |
03861's median household income is not ranked: its 90% margin of error (±$54,001) is more than a quarter of the figure ($131,579). Rankings use ZIP codes of 1,000 or more people living in households, with margins at most 25% of the figure.
It is denser than 64% of 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 03861?
The 2020 Census counted 4,499 people in 03861; the ACS, which samples households over 2020-2024, estimates 4,576. Between the 2010 and 2020 censuses its population grew 3.9% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 4,576
- 2020 Census count
- 4,499+3.9% since 2010 (4,330)
- Households
- 1,616
- Median age
- 42.9
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 03861?
Of the 4,576 people the ACS estimates in 03861, 21.9% are under 18 and 22.6% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (82.1%).
- Under 1821.9%
- 18 to 6455.5%
- 65 and older22.6%
- White, not Hispanic82.1%
- Hispanic or Latino7.4%
- Other or two or more5.6%
- Asian, not Hispanic4.8%
- Black, not Hispanic0.1%
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 03861 earn?
Median household income is $131,579 (ACS 2020-2024). It is not measurably different from 2015-2019 ($122,908 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $131,579±$54,001
- Income per person
- $66,562
- Below the poverty line
- 2.6%
- Unemployed (of the labor force)
- 3.3%
- Adults 25+ with a bachelor's degree
- 50.6%
- Adjusted gross income per tax return, 2022
- $111,1512,300 returns; wages 69% 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 03861?
FHFA's house price index for 03861, built from repeat sales and appraisals of the same homes, rose 116% from 2015 to 2025 and rose 68% from 2020 to 2025, and moved +5.3% in 2025.
- Median home value (owners' estimate)
- $480,600
- Median gross rent
- –
- Homes owned by their occupants
- 95.8%
- Housing units
- 1,773
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 03861?
92 business establishments had a location in this ZIP code in 2023, 21 more than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade16
- Professional, scientific, and technical services11
- Administrative and support and waste management and remediation services11
- Other services (except public administration)9
- Construction8
- Accommodation and food services8
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 03861?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 03824 | Durham | 15,080 | $124k | 4.5 mi |
| 03857 | Newmarket | 9,463 | $101k | 4.5 mi |
| 03823 | Madbury | 2,203 | $148k | 5.1 mi |
| 03042 | Epping | 7,430 | $104k | 6.2 mi |
| 03290 | Nottingham | 5,357 | $122k | 6.3 mi |
| 03825 | Barrington | 9,489 | $110k | 6.8 mi |
| 03856 | Newfields | 2,023 | $198k | 5.9 mi (near) |
| 03820 | Dover | 33,440 | $95k | 7.8 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.