Which ZIP code in Lake County has the highest median household income?

46373 (Saint John), at $127,146 (±$12,575), among 26 ZIP codes with at least 1,000 residents.

Why are some ZIP codes missing?

ZIP codes with fewer than 1,000 residents are left out because their survey estimates swing too much to rank, and so are ZIP codes where the Census Bureau did not publish this figure.

Richest ZIP codes in Lake County, IN

These are the 25 ZIP codes in Lake County with the highest median household income, out of 26 with at least 1,000 residents. 46373 (Saint John, $127,146), 46311 (Dyer, $116,652) and 46321 (Munster, $110,187) lead the list. There is no single "best" ZIP code in Lake County; the right one depends on who you want to reach, so the same ZIP codes are ranked several ways below.

Richest ZIP codes in Lake County

Rank	ZIP	Mailing city	Median household income	Residents	Households	Residential mailboxes
1	46373	Saint John	$127,146 ±$12,575	18,843	6,658	7,611
2	46311	Dyer	$116,652 ±$9,395	23,321	8,835	9,378
3	46321	Munster	$110,187 ±$11,660	23,733	9,471	9,475
4	46307	Crown Point	$107,800 ±$5,719	71,673	25,277	29,022
5	46375	Schererville	$93,160 ±$9,130	24,188	10,079	10,610
6	46341	Hebron	$89,559 ±$16,591	10,048	3,964	4,111
7	46356	Lowell	$89,217 ±$8,763	19,721	7,078	8,122
8	46303	Cedar Lake	$84,211 ±$14,535	17,680	6,385	8,131
9	46322	Highland	$78,062 ±$6,342	23,680	10,440	10,386
10	46342	Hobart	$75,521 ±$7,872	32,224	13,053	13,324
11	46319	Griffith	$74,662 ±$5,221	17,847	7,615	7,764
12	46394	Whiting	$66,176 ±$9,245	11,894	4,858	4,655
13	46410	Merrillville	$64,127 ±$6,929	39,243	16,859	17,463
14	46324	Hammond	$63,052 ±$4,658	21,409	8,767	8,673
15	46405	Lake Station	$60,881 ±$7,054	12,184	4,357	4,486
16	46323	Hammond	$59,688 ±$5,474	23,047	8,374	8,557
17	46408	Gary	$47,453 ±$5,037	15,747	6,099	6,266
18	46327	Hammond	$47,288 ±$8,377	10,597	3,843	3,665
19	46403	Gary	$45,991 ±$8,111	10,929	4,950	5,631
20	46409	Gary	$44,667 ±$8,025	7,184	2,648	2,974
21	46404	Gary	$42,256 ±$7,602	15,428	5,873	6,780
22	46312	East Chicago	$42,125 ±$2,976	26,022	9,943	9,179
23	46320	Hammond	$37,158 ±$3,124	14,353	5,480	5,542
24	46406	Gary	$35,839 ±$7,230	9,001	3,487	3,608
25	46402	Gary	$33,529 ±$7,802	5,836	2,258	2,578

How we ranked them

Ranked by median household income (ACS 5-year estimates, 2020–2024). The Census Bureau caps published medians at $250,000; ZIP codes at the cap are shown as $250,000+ and ordered by population. ZIP codes need at least 1,000 residents to be ranked; 26 of 28 qualify.

Which of these to mail, and why

Higher-income ZIP codes suit offers with a bigger ticket: remodeling, pools, roofing, financial planning, private schools, premium dining. A median describes the middle household, not every door, so the routes inside each ZIP still vary.

The top five ZIP codes on this list hold 60,320 households, on 114 carrier routes with 66,096 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 46373 on the EDDM route map

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Businesses that mail these ZIP codes

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Frequently asked questions

Which ZIP code in Lake County has the highest median household income?: 46373 (Saint John), at $127,146 (±$12,575), among 26 ZIP codes with at least 1,000 residents.
How is this ranking calculated?: Ranked by median household income (ACS 5-year estimates, 2020–2024). The Census Bureau caps published medians at $250,000; ZIP codes at the cap are shown as $250,000+ and ordered by population.
Why are some ZIP codes missing?: ZIP codes with fewer than 1,000 residents are left out because their survey estimates swing too much to rank, and so are ZIP codes where the Census Bureau did not publish this figure.

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.