07830 ZIP Code — Califon, NJ

Hunterdon County, New Jersey

ZIP code 07830 is located in Califon, New Jersey, within Hunterdon County. It covers approximately 26.02 square miles and serves a population of 7,748 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 908.

About ZIP code 07830

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1960s, giving the area an established character. Median home value is $609,800. Owner-occupancy is high at 94%, well above the national average.

The gap between median ($168,900) and mean household income suggests income inequality — a small number of higher earners pull the average up. 34% 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 36 minutes suggests many residents work outside the immediate area. Remote work is prevalent — 20% of workers work from home.

Educational attainment is high — 63% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Overall, ZIP code 07830 reflects a community defined by a highly educated population, high homeownership, a high rate of remote workers, and a significant Social Security-dependent population.

7,748

population

26.02

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

07830 ZIP code map

Cities in ZIP code 07830

Below are the cities the US Postal Service accepts for ZIP code 07830. Using any city not on this list may result in mail delivery delays.

City	Status
Califon	Acceptable
Califon	Preferred

Nearby ZIP codes

07853 Long Valley (4.7 mi) 08833 Lebanon (5.1 mi) 08826 Glen Gardner (5.4 mi) 08829 High Bridge (5.8 mi) 07934 Gladstone (6.1 mi) 07865 Port Murray (7.1 mi) 08801 Annandale (7.4 mi) 07921 Bedminster (7.4 mi) 07931 Far Hills (7.6 mi) 08889 Whitehouse Station (7.6 mi) 07831 Changewater (7.6 mi) 08809 Clinton (7.7 mi)

Demographics updated 05/2026

Population
Total population	7,748
Population density	298 / sq mi
State FIPS	34
County FIPS	019

Geography
Land area	26.02 sq mi
Water area	0.18 sq mi
Latitude	40.7153
Longitude	-74.8025
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	11.8%	17.8%	30.2%
$50k – $100k	22.2%	22.9%	26.7%
$100k – $200k	39.2%	35.2%	28.3%
Over $200k	26.8%	24.1%	14.8%

Demographics & statistics

7,748

Population

298

People per sq mi

50.8

Median age

$168,900

Median household income

$72,262

Per capita income

$609,800

Median home value

$1,614

Median monthly rent

94.4%

Home ownership

1.3%

Poverty rate

3.6%

Unemployment

2,724

Housing units

63.2%

Bachelor's or higher

Age distribution

Male Female

178

Under 5

202

208

5–9

236

212

10–14

241

186

15–19

210

129

20–24

147

179

25–34

202

449

35–44

508

582

45–54

659

552

55–59

626

250

60–64

284

364

65–74

413

205

75–84

233

137

85+

156

← Male

Female →

Age summary

Group	Count	%
Under 18	1,535	19.8%
18 and over	6,213	80.2%
65 and over	1,508	19.5%
Median age	50.8 years

Race & ethnicity

White 89.8%

Black or African American 3.7%

Asian 2.6%

Hispanic or Latino 1.6%

Two or more races 1.2%

Other race 0.8%

Native Hawaiian / Pacific Islander 0.3%

Group	Count	%
White	7,069	89.8%
Black or African American	295	3.7%
Asian	206	2.6%
Hispanic or Latino	123	1.6%
Two or more races	95	1.2%
Other race	60	0.8%
Native Hawaiian / Pacific Islander	21	0.3%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	11.8%	17.8%	30.2%
$50k – $100k	22.2%	22.9%	26.7%
$100k – $200k	39.2%	35.2%	28.3%
Over $200k	26.8%	24.1%	14.8%

Under $10k 0.6%

$10k–$15k 0.6%

$15k–$25k 3.0%

$25k–$35k 1.7%

$35k–$50k 2.5%

$50k–$75k 15.8%

$75k–$100k 5.0%

$100k–$150k 13.9%

$150k–$200k 25.1%

$200k+ 31.9%

Range	% of households
Under $10k	0.6%
$10k–$15k	0.6%
$15k–$25k	3.0%
$25k–$35k	1.7%
$35k–$50k	2.5%
$50k–$75k	15.8%
$75k–$100k	5.0%
$100k–$150k	13.9%
$150k–$200k	25.1%
$200k+	31.9%
Median income	$168,900

Housing

Home values

Under $50k 1.1%

$50k–$100k 0.1%

$150k–$200k 0.1%

$200k–$300k 9.7%

$300k–$500k 24.2%

$500k–$1M 52.5%

$1M+ 12.2%

Housing overview

Metric	Value
Median home value	$609,800
Median rent / month	$1,614
Owner occupied	94.4%
Renter occupied	5.6%
Vacant	0.7%
Single-family detached	97.7%
Large apartment buildings	0.0%
Mobile homes	0.0%
Median rooms	8.0
Avg household size (owned)	2.78

Year built

Era	%
2020 or later	0.0%
2010–2019	0.3%
2000–2009	13.2%
1990–1999	7.5%
1980–1989	14.8%
1970–1979	19.4%
1960–1969	23.0%
1950–1959	4.9%
1940–1949	2.8%
1939 or earlier	14.1%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	3.2%
2 bedrooms	10.0%
3 bedrooms	34.2%
4 bedrooms	42.9%
5+ bedrooms	9.7%

Vehicles per household

Vehicles	% of households
No vehicle	1.1%
1 vehicle	20.2%
2 vehicles	44.7%
3 or more	33.9%

Heating fuel

Fuel type	%
Utility gas	31.8%
Electricity	10.2%
Propane / LP gas	4.1%
Fuel oil	43.9%
Wood	5.0%

Households & families

Household type	Count	%
Married-couple family	2,104	73.5%
Cohabiting couple	101	3.5%
Male householder, no spouse	179	6.3%
Female householder, no spouse	479	16.7%
Households with children under 18	699	24.4%
Households with seniors (65+)	1,025	35.8%
Average household size	2.70

Marital status

Status	Male	Female
Never married	19.9%	18.8%
Married	76.1%	65.6%
Separated	0.0%	0.7%
Widowed	1.5%	9.3%
Divorced	2.5%	5.6%

Education

Less than 9th grade 1.2%

Some HS, no diploma 1.0%

HS graduate 15.0%

Some college, no degree 14.7%

Associate's degree 4.9%

Bachelor's degree 29.7%

Graduate / professional 33.4%

Metric	%
HS diploma or higher	97.8%
Bachelor's or higher	63.2%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	107	6.5%
Kindergarten	132	8.0%
Elementary school	741	45.0%
High school	302	18.3%
College / grad school	366	22.2%

Employment

Industry of employment

Education & healthcare 27.7%

Professional & management 21.9%

Retail trade 8.9%

Manufacturing 7.4%

Construction 6.5%

Arts, food & hospitality 6.2%

Public administration 5.2%

Finance & real estate 5.1%

Transportation & utilities 4.1%

Other services 2.6%

Agriculture & mining 1.9%

Wholesale trade 1.7%

Information 0.7%

Occupation

Category	%
Management, business & arts	60.5%
Service	13.3%
Sales & office	14.8%
Natural resources & construction	5.8%
Production & transportation	5.6%

Employment type

Type	%
Private sector	75.9%
Government	17.3%
Self-employed	6.7%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	68.4%
Carpool	4.6%
Public transit	2.7%
Walk	3.4%
Work from home	20.4%
Other means	0.5%
Avg commute (minutes)	36.4

Poverty

All people 1.3%

Under 18 years 1.0%

18 and over 1.4%

Married-couple families 0.3%

Female-led households 0.4%

Income support

Source	% of households
Social Security	33.8%
Retirement income	32.4%
Supplemental Security	1.6%
Cash public assistance	3.0%
Food stamps / SNAP	0.6%

Health indicators

Condition	%
Obesity	24.4%
High blood pressure	0.0%
High cholesterol	0.0%
Diabetes	7.3%
Heart disease	5.1%
Stroke	2.1%
Asthma	8.8%
Arthritis	19.7%
Kidney disease	2.2%
Pulmonary disease	4.6%
Cancer	7.0%

Behavior / access	%
Smoking	10.1%
Binge drinking	18.0%
No physical activity	13.8%
Less than 7 hrs sleep	28.1%
Depression	17.5%
Fair or poor health	8.0%
Poor mental health	11.9%
Poor physical health	7.1%
No health insurance	7.9%
Visited doctor (checkup)	74.8%
Visited dentist	76.6%
Cholesterol screening	0.0%
Teeth loss	6.3%

Veterans & disability

Veterans	Count	%
Civilian veterans	467	7.5%

Disability	%
Any disability	6.2%
Under 18	0.0%
18–64 years	5.8%
65 and over	13.7%

Health insurance coverage

Type	%
Private insurance	87.5%
Public insurance	25.4%
No insurance	0.3%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	7,368	95.1%
Spanish	143	1.9%
Other Indo-European	27	0.4%
Asian & Pacific Islander	114	1.5%
Other languages	2	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	7,206	93.0%
Born in same state	7,171	92.6%
Born in different state	5,511	71.1%
Foreign born	35	0.5%
Naturalized citizen	542	7.0%
Not a US citizen	378	69.7%

Ancestry

Ancestry	Count	%
Italian	1,793	23.1%
French	1,105	14.3%
Arab	427	5.5%
Polish	286	3.7%
Irish	176	2.3%

Ancestry	Count	%
English	96	1.2%
Dutch	49	0.6%
German	35	0.5%
Norwegian	26	0.3%

Technology access

Metric	% of households
Computer access	37.0%
Internet access	97.1%

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

Frequently asked questions about ZIP code 07830

What city is ZIP code 07830 in?

ZIP code 07830 is primarily assigned to Califon, New Jersey.

What county is ZIP code 07830 in?

ZIP code 07830 falls within Hunterdon County, New Jersey.

How educated is the population of ZIP code 07830?

63% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

Is ZIP code 07830 mostly owner-occupied?

94% of occupied units in ZIP code 07830 are owner-occupied, well above the national average.

What is the median household income in ZIP code 07830?

The median household income in ZIP code 07830 is $168,900, above the national median of ~$75,000.

What is the typical home value in ZIP code 07830?

The median home value in ZIP code 07830 is $609,800.

What timezone is ZIP code 07830 in?

ZIP code 07830 observes the EST timezone.