PlainZIP

Califon, NJ · standard

ZIP Code 07830

Hunterdon County, New Jersey - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

6,503
105/sq mi
$180,852
Median income
$656,400
Median home value
66.4%
Bachelor's or higher

The verdict

Califon pairs a top-decile household income with top-decile home values, in a rural, homeowner-dominated area.

Top 2%
household income, US ZIPs
Top 7%
home value, US ZIPs
105
people per sq mi
91%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 07830 against every reporting US ZIP.

ZIP code 07830 is a mid-sized community (a standard USPS delivery area) in Califon, Hunterdon County, New Jersey, home to 6,503 residents across 62.1 square miles, a density of 105 people per square mile, in the New York time zone.

ZIP 07830 skews affluent, with a median household income of $180,852 (48% above the New Jersey average), while per-capita income is $79,062. 3.1% of residents live below the poverty line, and the unemployment rate reads 5.2%. Median home value sits at $656,400 (27% above the state average), median rent at $1,979 a month, and owner-occupancy at 91.3%.

This is a highly-educated ZIP: 66.4% of adults hold a bachelor's degree or higher, the median age is 50.5, and the average commute is 33 minutes. A geography-based comparison follows: 10 ZIP codes within about 10 miles of 07830, plus 6 more within Hunterdon County, give a clearer read than the national average alone.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 07830

Top 5 sectors by establishment count in Califon, NJ

Which industries have the most business establishments in ZIP 07830.

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 + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 07830, Califon, NJ · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

6,503

Population

62.1

Area (sq mi)

105

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 07830?

50.5

Median Age

45.9%

Male

54.1%

Female

8.8%

Foreign-Born

White 83.6%
African American 6.1%
Asian 2.7%
American Indian or Alaska Native 0.1%
Native Hawaiian or Pacific Islander 0.2%
Two or More Ethnicities 5.7%
Hispanic or Latino 6.1%

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?

$180,852

Median Household Income

+48% vs state

$79,062

Per Capita Income

3.1%

Poverty Rate

5.2%

Unemployment Rate

32.8 min

Mean Commute Time

How ZIP 07830 ranks nationally

Califon, NJ household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$180,852 Top 2% higher than 98% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Below this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Below this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Below this entry. $140,000–$160,000: 686 US ZIPs (2%). Below this entry. $160,000–$180,000: 364 US ZIPs (1%). Below this entry. $180,000–$200,000: 186 US ZIPs (1%). This entry sits in this band. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

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

What is the education profile here?

High School Graduate or Higher 80.2%
Bachelor's Degree or Higher 66.4%

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

What does housing look like?

2,809

Total Housing Units

2,777

Occupied Units

32

Vacant Units

2.66

Avg Household Size

Occupancy Type

Owner 91.3%
Renter 8.7%

$656,400

Median Home Value

+27% vs state

$1,979

Median Rent

1973

Median Year Built

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

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

-1.6%

YoY Change (2024)

184

HPI Index (2000 = 100)

+84%

Total Change Since 2000

Home values in ZIP 07830 have decreased 1.6% over the past year (2024). Since 2000, this ZIP has seen +84% cumulative appreciation.

Year Annual Change HPI Index
2020 +0.9% 131
2021 +8.8% 143
2022 +11.6% 159
2023 +17.2% 187
2024 -1.6% 184

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 170 business establishments in ZIP 07830, employing approximately 1,000 people with a combined annual payroll of $63,071,000.

170

Businesses

1,000

Employees

$63.1M

Annual Payroll

13

Industry Sectors

Industry Establishments % of Total
Construction 32 18.8%
Professional, scientific, and technical services 28 16.5%
Retail trade 22 12.9%
Other services (except public administration) 18 10.6%
Health care and social assistance 15 8.8%
Accommodation and food services 12 7.1%
Administrative and support and waste management and remediation services 10 5.9%
Wholesale trade 7 4.1%
Real estate and rental and leasing 7 4.1%
Finance and insurance 5 2.9%
Agriculture, forestry, fishing and hunting 3 1.8%
Transportation and warehousing 3 1.8%
Educational services 3 1.8%

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 07830 vs 07853 →

ZIP 07830 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 07830 ranks #3 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 07830 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 07830 ranks #2 of 8 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
07853 Long Valley, NJ 13,325 4.6 mi
08833 Lebanon, NJ 8,796 5.3 mi
07870 Schooleys Mountain, NJ 26 5.8 mi
07979 Pottersville, NJ 589 4.4 mi
08826 Glen Gardner, NJ 5,838 5.1 mi
08858 Oldwick, NJ 144 4.7 mi
07934 Gladstone, NJ 1,501 6.8 mi
08829 High Bridge, NJ 3,725 5.8 mi
07865 Port Murray, NJ 2,189 6.5 mi
07977 Peapack, NJ 669 7.6 mi

More ZIP Codes in Hunterdon County

08822 standard
Flemington, NJ
Pop: 30,354
08889 standard
Whitehouse Station, NJ
Pop: 10,063
08833 standard
Lebanon, NJ
Pop: 8,796
08801 standard
Annandale, NJ
Pop: 8,551
08848 standard
Milford, NJ
Pop: 8,435
08530 standard
Lambertville, NJ
Pop: 8,071

Related Areas

Hunterdon County Califon, NJ New Jersey

Frequently Asked Questions

What county is ZIP code 07830 in? ▼
ZIP code 07830 (Califon) is located in Hunterdon County, New Jersey. Hunterdon County contains multiple ZIP codes, see the full list at /counties/hunterdon-nj.
What is the population of ZIP code 07830? ▼
ZIP code 07830 in Califon, NJ has a population of 6,503 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 07830? ▼
The median household income in ZIP 07830 is $180,852, which is 137% above the national average of $76,288.
What is the average home value in ZIP 07830? ▼
The median home value in ZIP 07830 is $656,400, which is 136% above the national average of $278,155.
What is the demographic makeup of ZIP 07830? ▼
The largest racial group in ZIP 07830 is White at 83.6%. Hispanic or Latino residents make up 6.1% of the population.
How many businesses are in ZIP code 07830? ▼
ZIP code 07830 has 170 business establishments employing approximately 1,000 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 07830? ▼
The top industries by establishment count in ZIP 07830 are: Construction (32), Professional, scientific, and technical services (28), Retail trade (22). There are 13 industry sectors represented in total.
How have home values changed in ZIP code 07830? ▼
According to the FHFA House Price Index, home values in ZIP 07830 decreased by 1.6% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 84%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 07830? ▼
In ZIP code 07830, 80.2% of residents aged 25+ have a high school diploma or higher, and 66.4% 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 07830? ▼
The mean commute time for workers in ZIP code 07830 is 32.8 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend more time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 07830? ▼
In ZIP code 07830, approximately 91.3% of occupied housing units are owner-occupied and 8.7% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 07830? ▼
The poverty rate in ZIP code 07830 is 3.1% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.