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Talk to a Specialist →The Exurban Edge
McHenry County is the outermost county in this guide — northwest of Cook, west of Lake County, and bordering Wisconsin. It's genuinely exurban: more open land, lower density, and towns like Huntley, Algonquin, and Crystal Lake that read as small cities rather than Chicago suburbs. I-90 (the Northwest Tollway) is the county's main artery, running through Huntley and Algonquin and connecting back toward O'Hare and the city. Metra's Union Pacific Northwest line extends into this part of the region for buyers who want an occasional rail option, though exact station distances vary by specific community — confirm with a local agent rather than assuming.
Being farther out means longer trips for anything beyond the immediate area — a specialist doctor's appointment, an airport run, a visit to family closer to the city. It also means winters that hit the same as the rest of Chicagoland, sometimes with more open-country wind exposure than the denser inner suburbs. Snow removal and seasonal driving are real, ongoing costs here; confirm what each HOA actually covers.
Sun City Huntley and Its Neighbors
Sun City Huntley is the second-largest 55+ community covered anywhere in this guide's data and the largest in McHenry County by a wide margin — a Del Webb flagship with the scale to support a full calendar of clubs, amenities, and on-site services that smaller communities simply can't match.
The remaining six McHenry County communities are considerably smaller, spread across Lake in the Hills, McHenry, Algonquin, and Crystal Lake:
- The Lakes of Boulder Ridge
- Patriot Estates
- Grand Reserve Algonquin
- Andaré at Glenloch
- Andaré at Woodlore Estates
- Andaré at Talamore
McHenry County's Tax Position
McHenry County's effective property tax rate runs roughly 2.0–2.4% of market value — noticeably lower than Lake County immediately to its east, and in line with or slightly below Cook and Will. Like all collar counties except Cook, McHenry assesses residential property at 33.33% of market value for its equalized assessed value (EAV) calculation.
The same statewide senior relief programs apply: the Senior Citizens Assessment Freeze (freezes EAV for 65+ households under $65,000 income; requires annual re-application; does not freeze the rate itself), the Senior Citizens Real Estate Tax Deferral (state-paid loan at 5% interest, repaid at sale or through the estate), the Circuit Breaker/Property Tax Relief Grant (up to $700/year, income-based, through the Illinois Department on Aging), and the General Homestead Exemption (roughly $6,000 off EAV, worth $200–$600/year, automatic once primary residence is established). Confirm current figures with the McHenry County Assessment Office before budgeting.
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What McHenry County Trades Away
On a $400,000 home, McHenry County's 2.0–2.4% effective rate produces roughly $8,000–$9,600 in annual property tax — the second-lowest range in this guide, just behind DuPage.
| County | Effective Rate | Annual Tax (Low) | Annual Tax (High) |
|---|---|---|---|
| DuPage | 1.8–2.2% | $7,200 | $8,800 |
| McHenry | 2.0–2.4% | $8,000 | $9,600 |
| Cook | 2.0–2.5% | $8,000 | $10,000 |
| Will | 2.0–2.5% | $8,000 | $10,000 |
| Kane | 2.2–2.6% | $8,800 | $10,400 |
| Lake | 2.2–2.8% | $8,800 | $11,200 |
What that lower tax rate costs you: distance. McHenry County is the furthest from Chicago proper of any corridor in this guide, and the smaller communities here (many under 250 homes) carry far less on-site amenity infrastructure than Sun City Huntley's 5,489-home scale. If you're not buying into Sun City Huntley specifically, you're likely trading amenity depth for a smaller HOA and a quieter, more rural setting.
Who McHenry County Actually Fits
McHenry County fits two very different buyers well: someone who wants Sun City Huntley's specific scale — the clubs, the golf, the sheer critical mass of neighbors in the same life stage — and is fine with the exurban distance that comes with it; or someone who wants a small, quiet, low-HOA community and doesn't mind being the furthest out from the city of any corridor here. It's a weaker fit for buyers who need to stay close to family or medical specialists in the city itself, or who want a wide selection of mid-size communities to compare — McHenry's inventory outside Sun City Huntley is thin.
More Chicago-Area Corridors
McHenry is the outermost of six corridors in this series. If the distance or the thin mid-size inventory gives you pause, compare the rest:
- Lake County Corridor Guide
- Kane County Corridor Guide
- Will County Corridor Guide
- DuPage County Corridor Guide
- Suburban Cook County Corridor Guide
The Bigger Illinois Picture
McHenry County's relatively low property tax rate pairs with Illinois's full exemption on retirement income — a combination that can rival a Sun Belt move for retirees who keep a modest home and draw significant pension or IRA income. Confirm your own numbers rather than assuming either direction is automatically cheaper.