Richest ZIP codes in Lake County, IL

These are the 25 ZIP codes in Lake County with the highest median household income, out of 30 with at least 1,000 residents. 60045 (Lake Forest, $233,125), 60015 (Deerfield, $183,125) and 60010 (Barrington, $177,566) 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

RankZIPMailing cityMedian household incomeResidentsHouseholdsResidential mailboxes
160045Lake Forest$233,125 ±$23,13521,0747,4708,247
260015Deerfield$183,125 ±$13,12728,09610,34610,487
360010Barrington$177,566 ±$10,24845,74716,52918,098
460047Lake Zurich$176,081 ±$6,82544,24015,58115,687
560048Libertyville$173,975 ±$8,26629,12410,49311,377
660035Highland Park$168,094 ±$17,85130,39811,78712,443
760069Lincolnshire$162,826 ±$11,9028,5023,4243,665
860044Lake Bluff$134,724 ±$25,28610,3124,1594,282
960089Buffalo Grove$129,401 ±$8,47542,87216,20616,995
1060046Lake Villa$126,042 ±$5,82534,61312,06413,251
1160061Vernon Hills$124,468 ±$10,33927,97411,34311,714
1260083Wadsworth$123,125 ±$23,1399,9813,6623,582
1360081Spring Grove$116,706 ±$11,9179,0883,3353,615
1460031Gurnee$111,034 ±$9,06437,10714,30715,133
1560060Mundelein$110,335 ±$8,91137,34413,54214,463
1660084Wauconda$110,090 ±$9,11217,1926,3616,685
1760040Highwood$107,875 ±$21,2565,3012,0251,873
1860002Antioch$104,981 ±$5,62824,2329,31910,506
1960030Grayslake$104,795 ±$6,92235,79214,39115,030
2060051Mchenry$100,762 ±$10,20724,62110,05410,708
2160042Island Lake$99,917 ±$11,7048,3473,0883,432
2260073Round Lake$98,514 ±$5,62062,86820,23619,864
2360096Winthrop Harbor$95,601 ±$11,8106,5272,8542,689
2460041Ingleside$93,396 ±$11,3659,0243,7063,887
2560087Waukegan$76,738 ±$6,06027,29310,19210,127

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; 30 of 31 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 60,419 households, on 157 carrier routes with 63,896 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 60045 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?
60045 (Lake Forest), at $233,125 (±$23,135), among 30 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.