Generated illustration of an imagined residential setting for the Algonquin resource
AI-generated illustration; does not depict an actual property or location.

Begin with the address in Algonquin

Algonquin (Census place 1700685) spans Kane and McHenry counties on the January 1, 2024 boundaries, so county records and tax offices depend on the exact address.

Several local answers turn on jurisdiction, so check which body serves the parcel before following a municipal procedure. The local questions below return most often to schools, jurisdiction and property records.

Local requirements, with their limits visible

The 12 local questions below draw on official Algonquin and agency material checked on October 6, 2026; the sources do not establish parcel-specific compliance. Confirm the current requirements for utilities with the responsible authority.

When preparing an offer or sale, confirm the current procedure, responsible party, required documents and timing for the exact property. Older documents, unreadable sources and conflicts require confirmation with the responsible office before relying on them.

  • The water code document is dated 2025-11-04; check intervening amendments with the Village before relying on it.
Reported home value
$351,000
Monthly owner costs, with mortgage
$2,307

ACS 2020–2024, municipality-wide medians in 2024 inflation-adjusted USD. Open-ended medians display a lower bound. These figures are not a current home valuation or a financing quote.

Housing types
The ACS estimates 11,151 housing units in Algonquin. Largest structure categories: 1 unit, detached: 8,348 (± 390), about 75%; 1 unit, attached: 1,867 (± 266), about 17%; 50+ units: 319 (± 168), about 3%. Source 1
Construction periods
Of 11,151 estimated units, the largest construction periods are 1990 to 1999: 3,778 (± 471), about 34%; 2000 to 2009: 2,278 (± 309), about 20%; 1980 to 1989: 1,900 (± 296), about 17%; about 4% were built in 1939 or earlier. Source 1
Reported home value
The median value reported for owner-occupied units in Algonquin is $351,000 (± $9,239), in 2024 inflation-adjusted dollars. Source 1 · Source 2
Monthly owner costs
Median selected monthly owner costs are $2,307 (± $73) with a mortgage and $1,023 (± $50) without one. Source 1 · Source 2 · Source 3
County context
The 2024 Census polygons place portions of Algonquin in Kane and McHenry counties; the county for a property depends on its parcel. Source 1 · Source 2
How to read these numbers → Compare Algonquin with other municipalities →

THE HOMES BEHIND THE NUMBERS

Explore Algonquin’s housing stock.

Look at the estimated mix of buildings and construction periods, then use it to shape your property research.

ACS 2020–2024 · Estimated housing units · Tap or focus a row to inspect it.

Select a row for its estimate and uncertainty. A municipality-wide distribution does not describe every individual property.

Read both housing distributions as tables
Algonquin · Building types · ACS 2020–2024
CategoryEstimated unitsMargin of error, unitsShare, point estimate
1 unit, detached8,34839074.9%
1 unit, attached1,86726616.7%
2 units45560.4%
3–4 units198871.8%
5–9 units1551061.4%
10–19 units108751.0%
20–49 units1111091.0%
50+ units3191682.9%
Mobile home0270.0%
Boat, RV, van, etc.0270.0%
Algonquin · Construction periods · ACS 2020–2024
CategoryEstimated unitsMargin of error, unitsShare, point estimate
2020 or later2091151.9%
2010 to 20197562416.8%
2000 to 20092,27830920.4%
1990 to 19993,77847133.9%
1980 to 19891,90029617.0%
1970 to 19791,0231789.2%
1960 to 19692941092.6%
1950 to 19593381343.0%
1940 to 19491831921.6%
1939 or earlier3921343.5%

Shares use the category estimate divided by its table total. Displayed margins of error apply to the unit counts; percentage uncertainty has not been derived. Read the original Census data · Data definitions.

YOUR QUESTIONS, ROOTED IN THE PLACE

Buying and selling in Algonquin.

12 local research questions

Choose the questions that fit your move. These controls narrow the reading links; every answer remains on this page.

12 reading links shown. Direct links always reach the full answer below.

Local research · Buyers & sellers

What information belongs in an Algonquin residential permit application?

Algonquin’s official residential application asks for the construction address, owner and applicant details, project type, estimated cost, and a specific description of dimensions and materials. Multiple addresses may be entered, but the form says a separate permit is issued for each address. For a proposed purchase with planned renovations, use the actual scope rather than a general description such as remodeling. Confirm the current supporting-document checklist with the Village before committing to work.

Address-dependent research · Checked 2026-10-06 · Source 1

Local research · Seller questions

Who maintains the private water pipe, and how should a departing owner close billing?

Algonquin’s water code distinguishes the user’s service pipe from the Village’s service pipe. The private portion from the curb stop toward the building is maintained at the user’s expense. The same chapter requires written notice to the Water Billing Clerk when moving from or within the Village; leaving without the notice can continue billing responsibility. Before closing, establish the actual service configuration and obtain the Village’s account instructions for the property rather than assuming a moving notice to another utility suffices.

Confirm current applicability · Checked 2026-10-06 · Source 1

Local research · Buyer questions

How can an Algonquin buyer request confirmation of a property's permitted use?

Algonquin’s property inquiry form expressly accepts prospective purchasers and requests an address or PIN, proposed use and supporting exhibits. Select the use-conformity or zoning-verification-letter request and describe the intended occupancy and changes. Ask Community Development for the response before valuing an extra unit or home business as an approved use.

Address-dependent research · Checked 2026-10-06 · Source 1

Local research · Buyers & sellers

What should I investigate before changing an Algonquin home in a planned development?

Algonquin’s inquiry process includes asking whether a parcel is in an approved planned development and whether proposed exterior changes or setbacks are acceptable. Provide the PIN and detailed changes, attaching the survey or design exhibits. Obtain the applicable planned-development response before assuming ordinary district standards alone authorize the renovation or what a seller advertises.

Address-dependent research · Checked 2026-10-06 · Source 1

Local research · Buyer questions

How can I connect an Algonquin property map to the correct tax record?

Algonquin’s public parcel layer contains the PIN, township and a link to the county record, alongside zoning and subdivision information. Match the parcel to the home and follow its county link to obtain the actual bill and assessment record. Do not choose the tax office from an Algonquin postal label or an aggregate county intersection.

Address-dependent research · Checked 2026-10-06 · Source 1

Local research · Buyers & sellers

Is Algonquin’s displayed 2006 FEMA layer enough to establish today's flood status?

No. Algonquin’s public GIS explicitly labels its floodplain layer as FEMA 2006. Treat that layer as orientation, then obtain the effective FEMA panel and any applicable map-change letter for the address. Give Community Development the parcel and proposed work for local review; the map label alone does not establish current development permission or eliminate drainage risk.

Address-dependent research · Checked 2026-10-06 · Source 1

Local research · Buyer questions

How do I verify District 158 schools for an Algonquin address?

District 158 explicitly serves portions of Algonquin. Its address locator distinguishes elementary and middle school boundaries, but the district says the map and tool are informational. Send Registration the exact home address, child's grade and intended school year at 847-659-6147 for confirmation before relying on a listing's school names.

Address-dependent research · Checked 2026-10-06 · Source 1

Local research · Buyer questions

Which ownership documents support school residency after an Algonquin purchase?

For an Algonquin home confirmed within District 158, its current residency page lists a HUD settlement statement or real-estate tax bill for owner residency. Ask Registration which available closing document it will accept and when to submit it. The page treats rental households separately, so do not substitute a lease checklist for an owner purchase.

Address-dependent research · Checked 2026-10-06 · Source 1

Local research · Buyer questions

Can District 158 bus to a sitter from an Algonquin household?

For an Algonquin address served by District 158, the district permits sitter-busing requests only when the sitter resides within the child's school boundary. Compare both addresses before selecting the home or childcare arrangement, then submit the district's request through Transportation. Published school proximity or a shared village name does not settle that condition.

Address-dependent research · Checked 2026-10-06 · Source 1

Local research · Buyer questions

Does an Algonquin address assigned to Liberty Elementary identify one future high school?

Liberty Elementary reports serving Algonquin households, but lists Dundee-Crown, Hampshire and Jacobs among its high-school feeder destinations. Its page directs families to District 300’s address locator for their own feeder pattern. For a property assigned to Liberty, confirm the later-grade path and intended enrollment year with the district before treating the elementary-school name as a high-school assignment.

Address-dependent research · Checked 2026-10-06 · Source 1

Local research · Buyers & sellers

Does an Algonquin sewer map establish who repairs the lateral?

Algonquin's sewer-lateral inventory separates ownership from maintenance and records the connected address, material and active or abandoned status. A mapped line therefore needs to be matched to the actual connection before allocating repair responsibility. Request the property's facility record from Public Works, compare it with the sewer inspection and confirm the maintenance arrangement before signing a repair agreement.

Address-dependent research · Checked 2026-10-06 · Source 1

Local research · Buyers & sellers

Is an Algonquin subdivision's detention basin necessarily Village-maintained?

Algonquin's detention-basin inventory distinguishes Village, association, private, school-district and transportation ownership and separately tracks maintenance. Before buying beside a pond, identify the specific basin and ask Public Works to confirm its maintainer against the recorded agreement. Review any association obligation and related assessments with the seller; the presence of a pond does not establish municipal upkeep.

Address-dependent research · Checked 2026-10-06 · Source 1

Sources and effective dates

Read the original guidance and use the version applicable to your property and transaction. Practical planning suggestions are distinguished from legal or program requirements.

Confirm current Falcon coverage for your exact property. This resource does not establish a service-area, school, legal-unit or parcel determination.