Residential delivery area · New Jersey
ZIP Code 07046: Mountain Lakes, NJ
ZIP code 07046 is in Mountain Lakes, New Jersey, entirely in Morris County (Census 2020 ZIP-county file). About 4,600 people live there (Census Bureau, ACS 2020-2024). Median household income is $250,000 or more (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Mountain Lakes · its only residential ZIP
- County
- Morris County
- Census places
- Mountain Lakes
- Metro area
- New York-Newark-Jersey City, NY-NJ
- House district
- NJ-11 119th Congress
- State
- New Jersey
- Time zone
- Eastern
- Land area
- 2.7 sq mi · 1,722 people per sq mi
Where is ZIP code 07046?
07046 centers on 40.891°, -74.442° and covers 2.7 square miles of land plus 0.3 of water. It borders 3 ZIP codes: 07834, 07005, 07054.
The map draws ZIP code areas only. For the streets inside 07046, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 07046 compare with the rest of Morris County?
| Measure | 07046 | In Morris County | In NJ |
|---|---|---|---|
| People (ACS 2020-2024) | 4,585 | 37th of 57 | 439th of 598 |
| Median household income | $250k+ | 1= of 43 | 1= of 476 |
| Median home value | $917k | 5th of 49 | 36th of 515 |
1= means a shared first place: 07046's median household income ties with 1 other ZIP code at the Census cap in Morris County; median household income ties with 7 other ZIP codes at the Census cap in New Jersey.
Its median household income is at the Census cap of $250,000 or more, like 117 other U.S. residential ZIP codes (69 of the 118 are large enough to rank), and it is denser than 83% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 07046?
The 2020 Census counted 4,508 people in 07046; the ACS, which samples households over 2020-2024, estimates 4,585. Between the 2010 and 2020 censuses its population grew 7.5% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 4,585
- 2020 Census count
- 4,508+7.5% since 2010 (4,194)
- Households
- 1,443
- Median age
- 43.4
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 07046?
Of the 4,585 people the ACS estimates in 07046, 32.7% are under 18 and 13.2% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (76.5%), then Asian (not Hispanic) (13.3%).
- Under 1832.7%
- 18 to 6454.1%
- 65 and older13.2%
- White, not Hispanic76.5%
- Asian, not Hispanic13.3%
- Other or two or more6.3%
- Hispanic or Latino3.8%
- Black, not Hispanic0.0%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 07046 earn?
Median household income is $250,000 or more (ACS 2020-2024), the highest of the 43 ranked ZIP codes in Morris County.
- Median household income
- $250,000 or more
- Income per person
- $116,093
- Below the poverty line
- 1.3%
- Unemployed (of the labor force)
- 2.4%
- Adults 25+ with a bachelor's degree
- 85.9%
- Adjusted gross income per tax return, 2022
- $428,8482,050 returns; wages 55% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 07046?
FHFA's house price index for 07046, built from repeat sales and appraisals of the same homes, rose 50% from 2015 to 2025 and rose 45% from 2020 to 2025, and moved +5.9% in 2025.
- Median home value (owners' estimate)
- $917,000
- Median gross rent
- $3,500 or more
- Homes owned by their occupants
- 96.1%
- Housing units
- 1,492
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 07046?
139 business establishments had a location in this ZIP code in 2023, 18 fewer than in 2018; the most are in professional, scientific, and technical services (ZIP Code Business Patterns).
- Professional, scientific, and technical services25
- Health care and social assistance25
- Finance and insurance14
- Accommodation and food services11
- Other services (except public administration)11
- Real estate and rental and leasing9
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 07046?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 07834 | Denville | 18,385 | $157k | 2.4 mi |
| 07005 | Boonton | 15,307 | $133k | 3.2 mi |
| 07054 | Parsippany | 29,480 | $104k | 3.3 mi |
| 07878 | Mount Tabor | 766 | $116k | 2.3 mi (near) |
| 07034 | Lake Hiawatha | 11,018 | $105k | 3.3 mi (near) |
| 07950 | Morris Plains | 21,651 | $154k | 3.7 mi (near) |
| 07045 | Montville | 10,561 | $185k | 4.1 mi (near) |
| 07981 | Whippany | 9,030 | $150k | 4.7 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.