| ZIP Codes: | 55 ZIP Codes (45 Standard, 10 PO Box, 0 Unique) [See All] |
| Area Codes: | 201 / 862 / 908 / 973 |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 11:54:29 PM |
| Population: | 492,888 [See All] |
| FIPS: | 34027 |
| CBSA: | New York-Newark-Jersey City, NY-NJ |
| Land Area: | 421 sq mi |
| Water Area: | 17 sq mi |
| Coordinates: | 40.8501, -74.5102 |
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492,888 residents live across 55 ZIPs covering 421 sq mi, served by 51 distinct USPS-recognized cities.
Population moved from 476,252 to 492,888 from 2014 to 2024 — a +3.5% change. 34 ZIPs gained residents, 15 lost.
The county's wealthiest ZIP 07945 (Mendham, $250,001 median) and poorest ZIP 07801 (Dover, $84,517) are 7.6 miles apart — a 3.0× income gap across local geography.
Median home values vary 3.0× across this county — from $346,100 in 07857 (Netcong) to $1,024,100 in 07928 (Chatham).
Density varies 22× across the county — from 347 people/sq mi in 07930 (Chester) to 7,561 in 07034 (Lake Hiawatha).
Educational attainment ranges from 22.4% bachelor's+ in 07801 (Dover) to 85.9% in 07046 (Mountain Lakes) — the breadth of educational profiles across the area.
Within New Jersey, this is the #10 most populous of 21 counties and ranks #2 for median household income .
On the national stage, Morris County is ranks #19 for income .
Weighted by population, the typical household earns about $146,833 across the county — reflecting what a typical resident sees, not a simple ZIP average.
58.0% of adults age 25+ hold a bachelor's degree or higher (203,684 of 351,188 reporting).
45 Standard delivery, 10 PO Box only, 0 single-entity Unique ZIPs serve this county.
18 ZIPs in this county where more than 60% of adults 25+ hold a bachelor's degree — typically college campuses, research enclaves, or tech corridors.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 07960 | Morristown | Standard | 46,702 | $160,334 | 34.2 | 6.3% |
| 07054 | Parsippany | Standard | 29,480 | $104,214 | 13.9 | -0.5% |
| 07801 | Dover | Standard | 27,128 | $84,517 | 4.5 | 3.8% |
| 07869 | Randolph | Standard | 26,022 | $169,497 | 20.8 | 1.4% |
| 07866 | Rockaway | Standard | 22,663 | $131,403 | 26.3 | 4.3% |
| 07950 | Morris Plains | Standard | 21,651 | $153,762 | 9.5 | 11.1% |
| 07928 | Chatham | Standard | 19,974 | $220,982 | 9.4 | 3.3% |
| 07834 | Denville | Standard | 18,385 | $156,902 | 12.4 | 2.8% |
| 07405 | Butler | Standard | 17,983 | $135,169 | 21.2 | 0.4% |
| 07940 | Madison | Standard | 17,610 | $172,708 | 4.8 | 4.3% |
| 07828 | Budd Lake | Standard | 15,461 | $103,320 | 11.4 | 6.9% |
| 07005 | Boonton | Standard | 15,307 | $132,629 | 19.1 | 0.6% |
| 07853 | Long Valley | Standard | 12,339 | $175,792 | 33.5 | -8.1% |
| 07932 | Florham Park | Standard | 11,977 | $156,458 | 7.2 | 13.2% |
| 07885 | Wharton | Standard | 11,806 | $100,716 | 21.1 | 14.5% |
| 07836 | Flanders | Standard | 11,694 | $151,915 | 15.2 | -10.1% |
| 07936 | East Hanover | Standard | 11,152 | $149,583 | 8.0 | -0.9% |
| 07035 | Lincoln Park | Standard | 11,120 | $123,234 | 8.0 | 5.0% |
| 07034 | Lake Hiawatha | Standard | 11,018 | $104,663 | 1.5 | 14.2% |
| 07444 | Pompton Plains | Standard | 10,971 | $117,959 | 5.4 | 1.5% |
| 07045 | Montville | Standard | 10,561 | $185,078 | 6.8 | 10.5% |
| 07945 | Mendham | Standard | 9,690 | $250,001 | 19.7 | 0.9% |
| 07876 | Succasunna | Standard | 9,641 | $161,304 | 5.8 | -5.2% |
| 07981 | Whippany | Standard | 9,030 | $149,893 | 6.9 | -1.7% |
| 07930 | Chester | Standard | 8,648 | $240,954 | 24.9 | 3.0% |
| 07849 | Lake Hopatcong | Standard | 8,380 | $117,298 | 12.1 | -8.6% |
| 07850 | Landing | Standard | 6,828 | $106,806 | 3.8 | -2.6% |
| 07058 | Pine Brook | Standard | 5,946 | $127,805 | 3.4 | -3.6% |
| 07082 | Towaco | Standard | 5,723 | $205,023 | 6.7 | 7.2% |
| 07927 | Cedar Knolls | Standard | 4,882 | $170,400 | 2.1 | 33.0% |
| 07856 | Mount Arlington | Standard | 4,774 | $92,466 | 4.5 | 28.3% |
| 07440 | Pequannock | Standard | 4,670 | $147,188 | 1.7 | -2.1% |
| 07046 | Mountain Lakes | Standard | 4,585 | $250,001 | 2.9 | 7.5% |
| 07852 | Ledgewood | Standard | 4,233 | $119,539 | 3.7 | 3.9% |
| 07457 | Riverdale | Standard | 4,112 | $102,950 | 2.1 | 5.3% |
| 07803 | Mine Hill | Standard | 4,048 | $119,583 | 3.0 | 10.7% |
| 07857 | Netcong | Standard | 3,728 | $85,898 | 1.4 | 12.8% |
| 07933 | Gillette | Standard | 2,995 | — | 7.3 | -11.3% |
| 07946 | Millington | Standard | 2,982 | $208,587 | 3.5 | -0.9% |
| 07980 | Stirling | Standard | 2,675 | $162,955 | 2.4 | 12.3% |
| 07847 | Kenvil | Standard | 1,776 | $85,327 | 2.1 | 37.4% |
| 07878 | Mount Tabor | PO Box | 766 | $116,445 | 0.3 | -21.8% |
| 07935 | Green Village | Standard | 584 | $106,979 | 2.9 | 43.5% |
| 07976 | New Vernon | Standard | 389 | $247,697 | 2.3 | -30.3% |
| 07961 | Convent Station | PO Box | 333 | — | 0.0 | — |
| 07970 | Mount Freedom | PO Box | 215 | $250,001 | 0.0 | 62.9% |
| 07926 | Brookside | PO Box | 161 | $250,001 | 0.0 | 106.4% |
| 07842 | Hibernia | PO Box | 56 | — | 0.9 | -60.8% |
| 07870 | Schooleys Mountain | PO Box | 34 | — | 0.0 | — |
| 07999 | Whippany | Standard | — | — | 0.0 | — |
| 07845 | Ironia | PO Box | — | — | 0.0 | — |
| 07963 | Morristown | PO Box | — | — | 0.0 | — |
| 07962 | Morristown | PO Box | — | — | 0.0 | — |
| 07806 | Picatinny Arsenal | Standard | — | — | 0.0 | — |
| 07802 | Dover | PO Box | — | — | 0.0 | — |