ZIP codes
27
Lake County, IN Demographics & ZIP Codes
Lake County, Indiana demographics and median household income by ZIP code — 27 ZIP codes — population 502,997 — avg. income $64,650 — avg. home value $176,531. Compare income, housing, and ZIP-level data on US5.
Population
502,997
Median household income (avg.)
$64,650
86% of U.S. median
Average home value
$176,531
51% of U.S. median
Average rent
$893
77% of U.S. median
Lake County demographics
Lake County, Indiana covers 27 ZIP codes, with a combined ZIP-area population of about 502,997.
Median household income in Lake County
The average median household income across ZIP codes in Lake County, Indiana is about $64,650 — about 10% below the IN ZIP average ($71,483), and about 14% below the U.S. median ($75,149).
Among ZIPs with income data, 46373 (St. John) is near the top at about $123,203, while 46407 (Gary) is near the bottom at about $25,551.
Housing in Lake County
For housing in Lake County, Indiana, the average median home value is about $176,531 and the average median rent is about $893.
The most populous ZIP is 46307 (Crown Point) with about 71,418 residents. Use the table below to compare ZIP codes across the county.
ZIP codes in Lake County
Sort by population, income, or home value. Click a column header to toggle ascending / descending.
| ZIP | City | County | State | Population ↓ | Income | Home value |
|---|---|---|---|---|---|---|
| 46307 | Crown Point | Lake County | IN | 71,418 | $102,118 | $293,500 |
| 46410 | Merrillville | Lake County | IN | 38,803 | $61,735 | $192,100 |
| 46342 | Hobart | Lake County | IN | 32,525 | $72,163 | $193,400 |
| 46312 | East Chicago | Lake County | IN | 26,158 | $41,071 | $92,400 |
| 46375 | Schererville | Lake County | IN | 24,012 | $89,646 | $295,400 |
| 46322 | Highland | Lake County | IN | 23,749 | $76,219 | $219,500 |
| 46321 | Munster | Lake County | IN | 23,733 | $105,764 | $312,000 |
| 46311 | Dyer | Lake County | IN | 23,405 | $109,167 | $300,000 |
| 46323 | Hammond | Lake County | IN | 23,184 | $56,906 | $149,200 |
| 46324 | Hammond | Lake County | IN | 21,433 | $61,118 | $141,600 |
| 46356 | Lowell | Lake County | IN | 19,396 | $87,535 | $256,300 |
| 46373 | St. John | Lake County | IN | 18,509 | $123,203 | $375,300 |
| 46319 | Griffith | Lake County | IN | 17,683 | $75,976 | $194,300 |
| 46303 | Cedar Lake | Lake County | IN | 16,910 | $78,659 | $271,700 |
| 46404 | Gary | Lake County | IN | 16,846 | $39,188 | $88,300 |
| 46408 | Gary | Lake County | IN | 15,571 | $47,063 | $96,200 |
| 46320 | Hammond | Lake County | IN | 14,097 | $35,706 | $115,300 |
| 46394 | Hammond | Lake County | IN | 12,141 | $66,386 | $162,900 |
| 46405 | Lake Station | Lake County | IN | 11,509 | $57,005 | $123,600 |
| 46327 | Hammond | Lake County | IN | 10,797 | $50,457 | $116,900 |
| 46403 | Gary | Lake County | IN | 10,697 | $44,114 | $154,800 |
| 46407 | Gary | Lake County | IN | 8,889 | $25,551 | $55,000 |
| 46406 | Gary | Lake County | IN | 8,513 | $35,631 | $86,300 |
| 46409 | Gary | Lake County | IN | 7,072 | $40,637 | $73,300 |
| 46402 | Gary | Lake County | IN | 5,636 | $29,125 | $61,200 |
| 46376 | Schneider | Lake County | IN | 280 | $68,750 | $169,300 |
| 46377 | Shelby | Lake County | IN | 31 | — | — |
Frequently asked questions
What are the demographics of Lake County?
Lake County, Indiana has a combined ZIP-area population of about 502,997 across 27 ZIP codes. Browse the ZIP table for population, income, and housing by code.
What is the median household income in Lake County?
The average median household income across ZIP codes in Lake County, Indiana is about $64,650, about 10% below the state ZIP average ($71,483), and about 14% below the U.S. median ($75,149). Average median home value is about $176,531. Among ZIPs with data, 46373 (St. John) is near the top ($123,203) and 46407 (Gary) is near the bottom ($25,551).
How many ZIP codes are in Lake County?
Lake County, Indiana includes 27 ZIP codes on US5. Each row links to demographics, median income, and housing for that code.
Where can I find ZIP code demographics for Lake County?
This page lists ZIP codes in Lake County, Indiana with population, median household income, and home value. Select a ZIP for a full demographics profile.