08559 ZIP Code — Stockton, NJ

Hunterdon County, New Jersey

ZIP code 08559 is located in Stockton, New Jersey, within Hunterdon County. It covers approximately 39.84 square miles and serves a population of 4,902 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 908.

About ZIP code 08559

The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $560,600. Owner-occupancy is high at 90%, well above the national average.

The gap between median ($165,354) and mean household income suggests income inequality — a small number of higher earners pull the average up. The poverty rate of 3% is below the national average. 38% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. An above-average commute of 38 minutes suggests many residents work outside the immediate area.

Educational attainment is high — 62% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Overall, ZIP code 08559 reflects a community defined by a highly educated population, high homeownership, and a significant Social Security-dependent population.

4,902

population

39.84

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

08559 ZIP code map

Cities in ZIP code 08559

Below are the cities the US Postal Service accepts for ZIP code 08559. Using any city not on this list may result in mail delivery delays.

City	Status
Stockton	Preferred

Nearby ZIP codes

08556 Rosemont (1.6 mi) 08825 Frenchtown (5.3 mi) 18913 Carversville (5.4 mi) 18933 Lumberville (5.6 mi) 18938 New Hope (6.1 mi) 08530 Lambertville (6.6 mi) 08551 Ringoes (7.1 mi) 18934 Mechanicsville (7.3 mi) 18947 Pipersville (7.6 mi) 08822 Flemington (7.7 mi) 18920 Erwinna (7.9 mi) 08867 Pittstown (9.1 mi)

Demographics updated 05/2026

Population
Total population	4,902
Population density	123 / sq mi
State FIPS	34
County FIPS	019

Geography
Land area	39.84 sq mi
Water area	0.75 sq mi
Latitude	40.4394
Longitude	-74.9717
Timezone	Eastern (ET)
Area code	908

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	14.0%	17.8%	30.2%
$50k – $100k	14.9%	22.9%	26.7%
$100k – $200k	47.9%	35.2%	28.3%
Over $200k	23.2%	24.1%	14.8%

Demographics & statistics

4,902

Population

123

People per sq mi

56.2

Median age

$165,354

Median household income

$95,581

Per capita income

$560,600

Median home value

$2,000

Median monthly rent

90.4%

Home ownership

3.3%

Poverty rate

1.0%

Unemployment

2,061

Housing units

62.4%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

134

15–19

133

190

20–24

188

203

25–34

200

195

35–44

193

310

45–54

306

207

55–59

205

299

60–64

295

517

65–74

510

172

75–84

169

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	547	11.2%
18 and over	4,355	88.8%
65 and over	1,512	30.8%
Median age	56.2 years

Race & ethnicity

White 86.3%

Hispanic or Latino 5.5%

Two or more races 4.6%

Other race 1.7%

Asian 1.3%

American Indian / Alaska Native 0.4%

Black or African American 0.2%

Group	Count	%
White	4,481	86.3%
Hispanic or Latino	288	5.5%
Two or more races	240	4.6%
Other race	86	1.7%
Asian	66	1.3%
American Indian / Alaska Native	20	0.4%
Black or African American	9	0.2%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	14.0%	17.8%	30.2%
$50k – $100k	14.9%	22.9%	26.7%
$100k – $200k	47.9%	35.2%	28.3%
Over $200k	23.2%	24.1%	14.8%

Under $10k 1.3%

$10k–$15k 1.0%

$15k–$25k 2.0%

$25k–$35k 3.6%

$35k–$50k 5.5%

$50k–$75k 5.2%

$75k–$100k 8.6%

$100k–$150k 21.2%

$150k–$200k 23.5%

$200k+ 28.1%

Range	% of households
Under $10k	1.3%
$10k–$15k	1.0%
$15k–$25k	2.0%
$25k–$35k	3.6%
$35k–$50k	5.5%
$50k–$75k	5.2%
$75k–$100k	8.6%
$100k–$150k	21.2%
$150k–$200k	23.5%
$200k+	28.1%
Median income	$165,354

Housing

Home values

$50k–$100k 1.5%

$100k–$150k 0.1%

$200k–$300k 3.2%

$300k–$500k 36.7%

$500k–$1M 46.1%

$1M+ 12.3%

Housing overview

Metric	Value
Median home value	$560,600
Median rent / month	$2,000
Owner occupied	90.4%
Renter occupied	9.6%
Vacant	9.4%
Single-family detached	91.1%
Large apartment buildings	0.3%
Mobile homes	0.0%
Median rooms	7.3
Avg household size (owned)	2.43

Year built

Era	%
2020 or later	0.0%
2010–2019	0.6%
2000–2009	7.8%
1990–1999	10.9%
1980–1989	25.1%
1970–1979	12.6%
1960–1969	5.2%
1950–1959	9.1%
1940–1949	3.3%
1939 or earlier	25.3%

Bedrooms

Size	% of units
No bedroom (studio)	0.1%
1 bedroom	11.3%
2 bedrooms	12.9%
3 bedrooms	37.1%
4 bedrooms	32.7%
5+ bedrooms	5.9%

Vehicles per household

Vehicles	% of households
No vehicle	3.5%
1 vehicle	19.6%
2 vehicles	35.2%
3 or more	41.7%

Heating fuel

Fuel type	%
Utility gas	20.5%
Electricity	10.2%
Propane / LP gas	20.3%
Fuel oil	44.8%
Wood	3.4%
Solar	0.2%

Households & families

Household type	Count	%
Married-couple family	1,364	66.7%
Cohabiting couple	145	7.1%
Male householder, no spouse	143	7.0%
Female householder, no spouse	393	19.2%
Households with children under 18	392	19.2%
Households with seniors (65+)	982	48.0%
Average household size	2.39

Marital status

Status	Male	Female
Never married	29.9%	21.8%
Married	60.5%	61.2%
Separated	0.2%	0.6%
Widowed	1.5%	8.8%
Divorced	7.9%	7.5%

Education

Less than 9th grade 1.2%

Some HS, no diploma 2.0%

HS graduate 13.1%

Some college, no degree 14.8%

Associate's degree 6.5%

Bachelor's degree 36.7%

Graduate / professional 25.7%

Metric	%
HS diploma or higher	96.8%
Bachelor's or higher	62.4%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	80	8.3%
Kindergarten	25	2.6%
Elementary school	179	18.5%
High school	247	25.5%
College / grad school	437	45.1%

Employment

Industry of employment

Education & healthcare 20.8%

Professional & management 18.0%

Manufacturing 11.3%

Finance & real estate 10.3%

Retail trade 8.8%

Arts, food & hospitality 8.7%

Public administration 5.1%

Construction 5.0%

Wholesale trade 3.6%

Information 3.5%

Transportation & utilities 2.3%

Other services 1.9%

Agriculture & mining 0.6%

Occupation

Category	%
Management, business & arts	57.2%
Service	11.9%
Sales & office	22.0%
Natural resources & construction	5.7%
Production & transportation	3.2%

Employment type

Type	%
Private sector	79.5%
Government	14.9%
Self-employed	4.8%
Unpaid family workers	0.8%

Commute

Method	%
Drive alone	72.5%
Carpool	9.1%
Public transit	2.7%
Walk	0.7%
Work from home	14.9%
Other means	0.1%
Avg commute (minutes)	37.9

Poverty

All people 3.3%

Under 18 years 3.8%

18 and over 3.3%

Married-couple families 0.5%

Female-led households 4.1%

Income support

Source	% of households
Social Security	38.2%
Retirement income	27.1%
Supplemental Security	0.1%
Cash public assistance	0.7%
Food stamps / SNAP	0.9%

Health indicators

Condition	%
Obesity	26.0%
High blood pressure	0.0%
High cholesterol	0.0%
Diabetes	8.5%
Heart disease	6.2%
Stroke	2.6%
Asthma	9.2%
Arthritis	22.4%
Kidney disease	2.6%
Pulmonary disease	5.8%
Cancer	7.8%

Behavior / access	%
Smoking	11.4%
Binge drinking	17.3%
No physical activity	16.1%
Less than 7 hrs sleep	28.3%
Depression	17.9%
Fair or poor health	9.8%
Poor mental health	12.3%
Poor physical health	8.3%
No health insurance	8.8%
Visited doctor (checkup)	75.8%
Visited dentist	73.5%
Cholesterol screening	0.0%
Teeth loss	8.0%

Veterans & disability

Veterans	Count	%
Civilian veterans	120	2.8%

Disability	%
Any disability	13.6%
Under 18	1.3%
18–64 years	6.0%
65 and over	32.4%

Health insurance coverage

Type	%
Private insurance	87.8%
Public insurance	30.2%
No insurance	1.7%
Uninsured under 19	0.5%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	4,840	98.7%
Spanish	74	1.5%
Other Indo-European	61	1.3%
Asian & Pacific Islander	0	0.0%
Other languages	13	0.3%

Place of birth & citizenship

Origin	Count	%
Native born (US)	4,778	97.5%
Born in same state	4,734	96.6%
Born in different state	2,983	60.9%
Foreign born	44	0.9%
Naturalized citizen	124	2.5%
Not a US citizen	91	73.4%

Ancestry

Ancestry	Count	%
French	984	20.1%
Italian	623	12.7%
Arab	93	1.9%
Irish	56	1.1%
German	48	1%

Ancestry	Count	%
English	47	1%
Norwegian	41	0.8%
Polish	25	0.5%
Dutch	16	0.3%

Technology access

Metric	% of households
Computer access	41.7%
Internet access	95.8%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 08559

What city is ZIP code 08559 in?

ZIP code 08559 is primarily assigned to Stockton, New Jersey.

What county is ZIP code 08559 in?

ZIP code 08559 falls within Hunterdon County, New Jersey.

Does ZIP code 08559 have an older population?

31% of residents in ZIP code 08559 are 65 or older, above the national average of ~17%.

How educated is the population of ZIP code 08559?

62% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

Is ZIP code 08559 mostly owner-occupied?

90% of occupied units in ZIP code 08559 are owner-occupied, well above the national average.

Does ZIP code 08559 have a large retiree population?

38% of households in ZIP code 08559 receive Social Security income, suggesting a significant retiree or disability population.

What timezone is ZIP code 08559 in?

ZIP code 08559 observes the EST timezone.