ZIP Code 08553

standard

Source:

Rocky Hill · Somerset County · New Jersey

Population
682

431/sq mi

Median income
$148,056

▲ 94% vs US

higher than 96% of US ZIPs

Median home value
$597,200

▲ 115% vs US

higher than 91% of US ZIPs

Bachelor's or higher
71.1%

Median age 44.5

Land area
1.6 sq mi

New York

ZIP code 08553 in Rocky Hill, New Jersey has a population of 682. The median household income is $148,056, which is 94% above the national average. Median home value is $597,200, 115% above the US average. 71.1% of residents hold a bachelor's degree or higher.

ZIP code 08553 is classified by USPS as a standard delivery area and covers roughly 1.6 square miles in Rocky Hill, Somerset County, New Jersey. The area is home to 682 residents, producing a population density of 431 people per square mile, and falls within the New York time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 08553 against New Jersey and the nation.

On the economic side, the median household income for ZIP 08553 sits at $148,056 (21% above the New Jersey average), while per-capita income is $80,279. The poverty rate stands at 3.9% and the unemployment rate at 5.3%. On housing, the median home value is $597,200 (16% above the state average) with median rent at $1,799 per month, and 76.4% of occupied units are owner-occupied, a direct signal of whether 08553 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 71.1% of adults hold a bachelor's degree or higher, the median age is 44.5, and the average commute is 23 minutes. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Somerset County, so you can benchmark 08553 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →

Top industries in ZIP 08553

Top 5 sectors by establishment count

Which industries have the most business establishments in ZIP 08553.

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 + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, FHFA HPI for ZIP 08553, Rocky Hill, NJ · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; HUD FMR + FHFA HPI updated quarterly/annually.

Quick Facts

682

Population

1.6

Area (sq mi)

431

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 08553?

44.5

Median Age

52.9%

Male

47.1%

Female

11.4%

Foreign-Born

White 82.9%
African American 0.1%
Asian 6.2%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 6.8%
Hispanic or Latino 7.7%

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?

$148,056

Median Household Income

+21% vs state

$80,279

Per Capita Income

3.9%

Poverty Rate

5.3%

Unemployment Rate

22.6 min

Mean Commute Time

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

What is the education profile here?

High School Graduate or Higher 81.6%
Bachelor's Degree or Higher 71.1%

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

What does housing look like?

320

Total Housing Units

318

Occupied Units

2

Vacant Units

2.53

Avg Household Size

Occupancy Type

Owner 76.4%
Renter 23.6%

$597,200

Median Home Value

+16% vs state

$1,799

Median Rent

1960

Median Year Built

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

What businesses operate in this ZIP?

Census Bureau data shows 28 business establishments in ZIP 08553, employing approximately 233 people with a combined annual payroll of $8,745,000.

28

Businesses

233

Employees

$8.7M

Annual Payroll

4

Industry Sectors

Industry Establishments % of Total
Professional, scientific, and technical services 6 21.4%
Construction 3 10.7%
Health care and social assistance 3 10.7%
Accommodation and food services 3 10.7%

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 08553 vs 08528 →

ZIP Code City Population Distance
08528 Kingston, NJ 315 1.5 mi
08540 Princeton, NJ 47,115 2.7 mi
08502 Belle Mead, NJ 11,317 3.4 mi
08542 Princeton, NJ 5,189 3.4 mi
08558 Skillman, NJ 6,629 3.5 mi
08852 Monmouth Junction, NJ 17,220 4.9 mi
08824 Kendall Park, NJ 12,115 4.9 mi
08823 Franklin Park, NJ 9,016 4.9 mi
08536 Plainsboro, NJ 20,073 5.5 mi
08844 Hillsborough, NJ 38,367 7.0 mi

More ZIP Codes in Somerset County

Frequently Asked Questions

What county is ZIP code 08553 in?
ZIP code 08553 (Rocky Hill) is located in Somerset County, New Jersey. Somerset County contains multiple ZIP codes, see the full list at /counties/somerset-nj.
What is the population of ZIP code 08553?
ZIP code 08553 in Rocky Hill, NJ has a population of 682 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 08553?
The median household income in ZIP 08553 is $148,056, which is 94% above the national average of $76,288.
What is the average home value in ZIP 08553?
The median home value in ZIP 08553 is $597,200, which is 115% above the national average of $278,155.
What is the demographic makeup of ZIP 08553?
The largest racial group in ZIP 08553 is White at 82.9%. Hispanic or Latino residents make up 7.7% of the population.
How many businesses are in ZIP code 08553?
ZIP code 08553 has 28 business establishments employing approximately 233 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 08553?
The top industries by establishment count in ZIP 08553 are: Professional, scientific, and technical services (6), Construction (3), Health care and social assistance (3). There are 4 industry sectors represented in total.
What is the education level in ZIP code 08553?
In ZIP code 08553, 81.6% of residents aged 25+ have a high school diploma or higher, and 71.1% 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 08553?
The mean commute time for workers in ZIP code 08553 is 22.6 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend less time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 08553?
In ZIP code 08553, approximately 76.4% of occupied housing units are owner-occupied and 23.6% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 08553?
The poverty rate in ZIP code 08553 is 3.9% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

ZIP Code Research Guides

Official Data Resources for Rocky Hill, NJ

Verify and explore additional data for this area using these official government sources.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023). Business data: Source: Census ZIP Code Business Patterns (ZBP) 2023. Home value trends: Source: FHFA House Price Index (HPI), Five-Digit ZIP Codes.

PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.