Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — STATE/IL/COUNTY/MCLEAN

McLean County, IL ZIP codes

There are 31 ZIP codes in McLean County, IL, in 23 towns, from 61701 to 61799. The largest are 61761 (Normal), 61704 (Bloomington) and 61701 (Bloomington).

The county seat is Bloomington.

ZIP codes
31
Towns
23
County seat
Bloomington
County FIPS
17113
Population
171,556
Median household income
$79,905
Land area
1,183 sq mi
Area codes
309, 861
Metro area
Bloomington

McLean County ZIP codes by town

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

Map of McLean County ZIP codes

61701617026170461705617096171061720617226172461726617286173061731617326173661737617446174561748617526175361754617586176161770617726177461776617906179161799

The ZIP codes of McLean County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

McLean County in numbers

About 171,556 people live in McLean County, in 70,220 households, the 13th most populous of Illinois's 102 counties. The median household income is $79,905 a year, 4% below the Illinois median of $83,390 (US: $80,734). The median owner-occupied home is valued at $208,400 (21% below the Illinois median), and median gross rent is $1,009 a month. The median age is 34.3; 47.2% of adults 25 and over hold a bachelor's degree or higher (37.8% across Illinois); the average commute takes 18 minutes.

Population171,556McLean171,556
Households70,220McLean70,220
Median age34.3McLean34.3Illinois39.0US 38.9
Median household income$79,905McLean$79,905Illinois$83,390US $80,734
Median home value$208,400McLean$208,400Illinois$263,300US $332,700
Median gross rent$1,009McLean$1,009Illinois$1,274US $1,413
Bachelor's degree or higher47.2%McLean47.2%Illinois37.8%US 35.7%
Mean commute18.3 minMcLean18.3 minIllinois27.8 minUS 26.4 min
Population density145 / sq miMcLean145 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.

Largest towns in McLean County

Largest towns in McLean County
TownZIP codesPopulation
Bloomington 8 78,907
Normal 2 53,569
Le Roy 1 3,236
Heyworth 1 2,573
Lexington 1 2,126
Hudson 1 1,918
Chenoa 1 1,647
Downs 1 1,641
Gridley 1 1,390
Mc Lean 1 1,131
Danvers 1 1,130
Colfax 1 1,054
Saybrook 1 744
Stanford 1 514
Towanda 1 350

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Neighbouring counties

Counties that share a ZIP code with McLean County.

Not sure you are in McLean County? What county am I in? answers from your location, near a county line included.

Every ZIP code in McLean County, with figures

ZIP codes in McLean County
ZIP City Type Population Median income Median home
61701 Bloomington , IL Standard 35,136 $57,130 $144,500
61702 Bloomington , IL No street area — — —
61704 Bloomington , IL Standard 37,279 $95,027 $248,100
61705 Bloomington , IL Standard 13,213 $120,547 $328,200
61709 Bloomington , IL No street area — — —
61710 Bloomington , IL No street area — — —
61720 Anchor , IL Standard 374 $91,250 $110,800
61722 Arrowsmith , IL Standard 658 $111,042 $135,700
61724 Bellflower , IL Standard 369 $81,250 $147,900
61726 Chenoa , IL Standard 2,546 $77,800 $135,800
61728 Colfax , IL Standard 1,359 $97,159 $155,200
61730 Cooksville , IL Standard 361 $76,719 $160,600
61731 Cropsey , IL Standard 76 — $181,000
61732 Danvers , IL Standard 2,099 $107,941 $224,400
61736 Downs , IL Standard 2,673 $110,444 $276,000
61737 Ellsworth , IL Standard 416 $83,750 $178,800
61744 Gridley , IL Standard 2,157 $68,000 $170,900
61745 Heyworth , IL Standard 4,542 $107,835 $228,400
61748 Hudson , IL Standard 2,675 $128,036 $233,600
61752 Le Roy , IL Standard 4,332 $87,591 $178,100
61753 Lexington , IL Standard 2,833 $104,119 $185,700
61754 Mc Lean , IL Standard 1,131 $98,681 $162,500
61758 Merna , IL No street area — — —
61761 Normal , IL Standard 54,075 $65,275 $214,600
61770 Saybrook , IL Standard 1,067 $60,750 $110,900
61772 Shirley , IL Standard 273 — —
61774 Stanford , IL Standard 949 $86,250 $179,800
61776 Towanda , IL Standard 1,285 $119,625 $211,300
61790 Normal , IL No street area — — —
61791 Bloomington , IL No street area — — —
61799 Bloomington , IL No street area — — —

Cite this page

zipcodes.pro. “McLean County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/il/county/mclean

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