Residential delivery area · New Jersey
ZIP Code 08844: Hillsborough, NJ
ZIP code 08844 uses the postal name Hillsborough, New Jersey and lies entirely in Somerset County (Census 2020 ZIP-county file). About 44,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $153,556 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Hillsborough (14%), Blackwells Mills (12%), Neshanic (7%), Flagtown (3%) and Millstone (1%), and 4% in smaller places; 60% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Hillsborough · its only residential ZIP
- County
- Somerset County
- Census places
- Hillsborough (14%) census-designated place; Blackwells Mills (12%) census-designated place; Neshanic (7%) census-designated place; Flagtown (3%) census-designated place
- Metro area
- New York-Newark-Jersey City, NY-NJ
- House districts
- NJ-12 (61%), NJ-7 (39%) 119th Congress, by share of land
- State
- New Jersey
- Time zone
- Eastern
- Land area
- 55.2 sq mi · 806 people per sq mi
Where is ZIP code 08844?
08844 centers on 40.498°, -74.671° and covers 55.2 square miles of land plus 0.5 of water. It borders 12 ZIP codes: 08821, 08502, 08853, 08869, 08835, 08558, 08876, 08887, 08807, 08873 and more.
The map draws ZIP code areas only. For the streets inside 08844, 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 08844 compare with the rest of Somerset County?
| Measure | 08844 | In Somerset County | In NJ |
|---|---|---|---|
| People (ACS 2020-2024) | 44,463 | 4th of 32 | 43rd of 598 |
| Median household income | $154k | 13th of 24 | 106th of 476 |
| Median home value | $548k | 13th of 25 | 178th of 515 |
Its median household income is higher than in 97% of U.S. residential ZIP codes, and it is denser than 76% 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 08844?
The 2020 Census counted 43,333 people in 08844; the ACS, which samples households over 2020-2024, estimates 44,463. Between the 2010 and 2020 censuses its population grew 12.9% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 44,463
- 2020 Census count
- 43,333+12.9% since 2010 (38,367)
- Households
- 16,497
- Median age
- 42.1
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 08844?
Of the 44,463 people the ACS estimates in 08844, 21.8% are under 18 and 16.0% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (58.4%), then Asian (not Hispanic) (21.8%).
- Under 1821.8%
- 18 to 6462.2%
- 65 and older16.0%
- White, not Hispanic58.4%
- Asian, not Hispanic21.8%
- Hispanic or Latino11.2%
- Other or two or more4.8%
- Black, not Hispanic3.8%
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 08844 earn?
Median household income is $153,556 (ACS 2020-2024), the 13th highest of the 24 ranked ZIP codes in Somerset County. It is not measurably different from 2015-2019 ($159,333 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $153,556
- Income per person
- $71,838
- Below the poverty line
- 3.0%
- Unemployed (of the labor force)
- 4.6%
- Adults 25+ with a bachelor's degree
- 62.3%
- Adjusted gross income per tax return, 2022
- $146,28421,730 returns; wages 75% 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 08844?
FHFA's house price index for 08844, built from repeat sales and appraisals of the same homes, rose 72% from 2015 to 2025 and rose 58% from 2020 to 2025, and moved +4.7% in 2025.
- Median home value (owners' estimate)
- $547,700
- Median gross rent
- $2,388
- Homes owned by their occupants
- 79.6%
- Housing units
- 16,646
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 08844?
994 business establishments had a location in this ZIP code in 2023, 45 more than in 2018; the most are in professional, scientific, and technical services (ZIP Code Business Patterns).
- Professional, scientific, and technical services170
- Health care and social assistance144
- Construction114
- Retail trade89
- Other services (except public administration)84
- Accommodation and food services70
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 08844?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 08821 | Flagtown | 283 | $156k | 1.8 mi |
| 08502 | Belle Mead | 11,849 | $227k | 3.5 mi |
| 08853 | Neshanic Station | 5,634 | $221k | 4.3 mi |
| 08869 | Raritan | 8,368 | $108k | 5.2 mi |
| 08835 | Manville | 10,921 | $93k | 5.3 mi |
| 08558 | Skillman | 7,648 | $236k | 6.1 mi |
| 08876 | Somerville | 23,380 | $123k | 6.4 mi |
| 08887 | Three Bridges | 1,380 | $109k | 6.8 mi |
| 08807 | Bridgewater | 39,560 | $169k | 7.1 mi |
| 08873 | Somerset | 56,327 | $125k | 7.3 mi |
| 08525 | Hopewell | 4,522 | $165k | 9.0 mi |
| 08540 | Princeton | 50,388 | $177k | 9.2 mi |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.