County ZIP codes · Illinois · FIPS 17111
McHenry County, IL ZIP Codes
McHenry County, Illinois has 25 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 23 residential and 2 for PO boxes or a single organization. 18 of the residential ones lie mainly in McHenry County and 5 mainly in a neighboring county; 13 cross the county line. Median household income ranges from $68,633 in 60033 (Harvard) to $177,566 in 60010 (Barrington) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of McHenry County?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
How different are its ZIP codes?
The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $93,397 and $117,151.
They carry 21 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 23 residential ZIP codes in McHenry County
18 ZIP codes lie mainly in McHenry County; 5 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 60014 | Crystal Lake | 48,590 | 1,936 | $109k | $324k | 100% |
| 60098 | Woodstock | 33,130 | 316 | $91k | $277k | 100% |
| 60102 | Algonquin | 32,286 | 2,047 | $133k | $350k | 78% |
| 60050 | McHenry | 31,781 | 1,203 | $89k | $264k | 100% |
| 60142 | Huntley | 29,692 | 764 | $90k | $340k | 72% |
| 60156 | Lake In The Hills | 28,800 | 2,714 | $117k | $322k | 100% |
| 60013 | Cary | 26,694 | 1,846 | $121k | $314k | 91% |
| 60051 | McHenry | 24,621 | 742 | $101k | $278k | 82% |
| 60033 | Harvard | 12,999 | 111 | $69k | $203k | 94% |
| 60152 | Marengo | 12,417 | 130 | $99k | $300k | 98% |
| 60012 | Crystal Lake | 12,368 | 715 | $159k | $417k | 100% |
| 60097 | Wonder Lake | 11,983 | 747 | $93k | $230k | 100% |
| 60081 | Spring Grove | 9,088 | 461 | $117k | $355k | 82% |
| 60021 | Fox River Grove | 4,996 | 2,438 | $119k | $293k | 94% |
| 60071 | Richmond | 3,851 | 155 | $74k | $331k | 100% |
| 60034 | Hebron | 2,033 | 66 | $87k | $254k | 100% |
| 60180 | Union | 1,831 | 87 | $110k | $349k | 100% |
| 60072 | Ringwood | 870 | 90 | $119k | $414k | 100% |
Partly in McHenry County
| In this county | ||||||
|---|---|---|---|---|---|---|
| 60042 | Island Lake | 8,347 | 1,828 | $100k | $259k | 46% |
| 60010 | Barrington | 45,747 | 617 | $178k | $638k | 9% |
| 61038 | Garden Prairie | 1,274 | 30 | $105k | $282k | 7% |
| 60135 | Genoa | 7,274 | 155 | $98k | $254k | 2% |
| 60140 | Hampshire | 22,689 | 280 | $111k | $338k | 1% |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).
Which ZIP codes cross the county line?
13 ZIP codes of McHenry County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In McHenry | Elsewhere |
|---|---|---|
| 60010 | 9% | Cook County 51%; Lake County 38%; Kane County 2% |
| 60102 | 78% | Kane County 22% |
| 60142 | 72% | Kane County 28% |
| 60013 | 91% | Lake County 9% |
| 60051 | 82% | Lake County 18% |
| 60140 | 1% | Kane County 95%; DeKalb County 4% |
| 60033 | 94% | Boone County 6% |
| 60152 | 98% | DeKalb County 2% |
| 60081 | 82% | Lake County 18% |
| 60042 | 46% | Lake County 54% |
| 60135 | 2% | DeKalb County 96%; Boone County 2% |
| 60021 | 94% | Lake County 6% |
| 61038 | 7% | Boone County 93% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
PO Box and single-organization ZIP codes
| ZIP | Postal name |
|---|---|
| 60001 | Alden |
| 60039 | Crystal Lake |
Source: GeoNames postal codes (CC BY 4.0).
Which first three digits do McHenry County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. McHenry County's ZIP codes use 3 prefixes: 600, 601 and 610.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 600 | Palatine, IL (SCF 600) | 17 | 82 |
| 601 | Carol Stream, IL (SCF 601) | 7 | 89 |
| 610 | Palatine, IL (SCF 600) | 1 | 66 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.