ZIP code 07840
Where is ZIP code 07840?
Hackettstown, New Jersey
Warren County · Standard ZIP code
ZIP code 07840 belongs to Hackettstown, New Jersey in Warren County. 07840 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Eastern Time zone and uses area codes 862, 908 and 973. About 32,105 people live in the 07840 area, where the median household income is $105,866. The closest ZIP codes are 07880 (Vienna, 3.4 mi west), 07870 (Schooleys Mountain, 3.9 mi south) and 07820 (Allamuchy, 4.9 mi north).
| ZIP code | 07840 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Hackettstown |
| State | New Jersey (NJ) |
| County | Warren County |
| Time zone | Eastern Time · now |
| Area codes | 862, 908, 973 |
| Coordinates | 40.8529, -74.8343 map |
| 3-digit prefix | 078 |
Population and income in 07840
| Population | 32,105 · higher than 86% of New Jersey ZIP codes |
|---|---|
| People per square mile | 860 · lower than 67% of New Jersey ZIP codes |
| Median age | 43.1 years · higher than 58% of New Jersey ZIP codes |
| Men / women | 49% / 51% |
| Median household income | $105,866 · lower than 58% of New Jersey ZIP codes |
| Income per person | $53,709 |
| Below the poverty line | 6.4% |
| Bachelor’s degree or higher | 50% of adults 25+ |
| Median home value | $396,100 · lower than 63% of New Jersey ZIP codes |
| Median rent | $1,487 a month |
| Housing units | 13,021 |
| Households | 12,768 (2.45 people on average) |
| Owners / renters | 70% / 30% |
| Land area | 37.33 sq mi (plus 0.42 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 07840. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 07840
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 07880 | Vienna, NJ | 3.4 mi W | PO Box only |
| 07870 | Schooleys Mountain, NJ | 3.9 mi S | PO Box only |
| 07820 | Allamuchy, NJ | 4.9 mi N | PO Box only |
| 07828 | Budd Lake, NJ | 5 mi E | Standard |
| 07853 | Long Valley, NJ | 5.1 mi SE | Standard |
| 07838 | Great Meadows, NJ | 5.6 mi W | Standard |
| 07865 | Port Murray, NJ | 6.1 mi SW | Standard |
| 07836 | Flanders, NJ | 6.9 mi E | Standard |
| 07879 | Tranquility, NJ | 7.5 mi N | PO Box only |
| 07857 | Netcong, NJ | 7.8 mi NE | Standard |
| 07829 | Buttzville, NJ | 8 mi W | PO Box only |
| 07846 | Johnsonburg, NJ | 8 mi N | PO Box only |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 07840 or measure the distance to another ZIP code.
How to address mail to 07840
123 MAIN ST
HACKETTSTOWN NJ 07840
Put the city, the two-letter state code and the ZIP code on the last line. Avoid Allamuchy Twp: USPS doesn’t recognize it as the city for this ZIP code. Adding the 4-digit ZIP+4 code (07840-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 07840?
- 07840 is a Hackettstown, New Jersey ZIP code.
- What county is 07840 in?
- ZIP code 07840 is in Warren County, New Jersey.
- What time zone is ZIP code 07840 in?
- 07840 is in the Eastern Time zone (America/New_York).
- What area code is 07840?
- Phone numbers in ZIP code 07840 use area codes 862, 908 and 973.
- What is the population of ZIP code 07840?
- About 32,105 people live in ZIP code 07840, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 07840?
- The median household income in 07840 is $105,866 a year, lower than 58% of New Jersey ZIP codes.
- What ZIP codes are near 07840?
- The nearest ZIP codes to 07840 are 07880 (Vienna, 3.4 miles), 07870 (Schooleys Mountain, 3.9 miles), 07820 (Allamuchy, 4.9 miles) and 07828 (Budd Lake, 5 miles).