Residential delivery area · Indiana
ZIP Code 46303: Cedar Lake, IN
ZIP code 46303 uses the postal name Cedar Lake, Indiana and lies entirely in Lake County (Census 2020 ZIP-county file). About 18,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $84,211 (Census Bureau, ACS 2020-2024). By Census place, 27% of its land lies in Cedar Lake, and under 1% in smaller places; 72% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Cedar Lake · its only residential ZIP
- County
- Lake County
- Census places
- Cedar Lake
- Metro area
- Chicago-Naperville-Elgin, IL-IN
- House district
- IN-1 119th Congress
- State
- Indiana
- Time zone
- Central
- Land area
- 28.7 sq mi · 616 people per sq mi
Where is ZIP code 46303?
46303 centers on 41.374°, -87.479° and covers 28.7 square miles of land plus 1.4 of water. It borders 6 ZIP codes: 46373, 60417, 46311, 60401, 46307, 46356.
The map draws ZIP code areas only. For the streets inside 46303, 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 46303 compare with the rest of Lake County?
| Measure | 46303 | In Lake County | In IN |
|---|---|---|---|
| People (ACS 2020-2024) | 17,680 | 14th of 28 | 148th of 807 |
| Median household income | $84k | 8th of 26 | 118th of 478 |
| Median home value | $294k | 6th of 25 | 58th of 509 |
Its median household income is higher than in 67% of U.S. residential ZIP codes, and it is denser than 74% 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 46303?
The 2020 Census counted 17,028 people in 46303; the ACS, which samples households over 2020-2024, estimates 17,680. Between the 2010 and 2020 censuses its population grew 20.2% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 17,680
- 2020 Census count
- 17,028+20.2% since 2010 (14,170)
- Households
- 6,385
- Median age
- 40.1
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 46303?
Of the 17,680 people the ACS estimates in 46303, 23.5% are under 18 and 15.8% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (86.4%).
- Under 1823.5%
- 18 to 6460.7%
- 65 and older15.8%
- White, not Hispanic86.4%
- Hispanic or Latino8.0%
- Other or two or more4.5%
- Asian, not Hispanic0.9%
- Black, not Hispanic0.2%
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 46303 earn?
Median household income is $84,211 (ACS 2020-2024), the 8th highest of the 26 ranked ZIP codes in Lake County. It is not measurably different from 2015-2019 ($84,440 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $84,211±$14,535
- Income per person
- $41,210
- Below the poverty line
- 4.1%
- Unemployed (of the labor force)
- 5.2%
- Adults 25+ with a bachelor's degree
- 27.4%
- Adjusted gross income per tax return, 2022
- $81,5759,370 returns; wages 72% 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 46303?
FHFA's house price index for 46303, built from repeat sales and appraisals of the same homes, rose 89% from 2015 to 2025 and rose 52% from 2020 to 2025, and moved −0.6% in 2025.
- Median home value (owners' estimate)
- $293,500
- Median gross rent
- $1,361
- Homes owned by their occupants
- 86.5%
- Housing units
- 7,082
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 46303?
264 business establishments had a location in this ZIP code in 2023, 52 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction44
- Retail trade38
- Accommodation and food services36
- Other services (except public administration)34
- Professional, scientific, and technical services23
- Administrative and support and waste management and remediation services17
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 46303?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 46373 | Saint John | 18,843 | $127k | 4.7 mi |
| 60417 | Crete, IL | 14,901 | $92k | 6.7 mi |
| 46311 | Dyer | 23,321 | $117k | 6.7 mi |
| 60401 | Beecher, IL | 7,647 | $98k | 7.2 mi |
| 46307 | Crown Point | 71,673 | $108k | 8.2 mi |
| 46356 | Lowell | 19,721 | $89k | 8.2 mi |
| 46375 | Schererville | 24,188 | $93k | 8.3 mi (near) |
| 60475 | Steger, IL | 10,035 | $68k | 10.3 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.