weddingA $30 to $60 license from the County Clerk, a 1 day wait, and 60 days to use it. Here is every step, what a courthouse wedding costs, and how a $38,000 Illinois wedding compares.
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The average Illinois wedding costs about 1,267 times the license. Bars use a log scale so the small fees stay visible.
License fee from Illinois official sources, see our Illinois requirements page. State and US averages: The Knot 2026 Real Weddings Study.
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From the County Clerk counter to a recorded marriage, in the order you do it.
Both of you must be at least 18 (16 with parental consent or court approval). You do not need to live in Illinois. No blood test.
Bring valid photo ID. If either of you was married before, have the date the last marriage ended. Your county may ask for more, so check its list before you go.
IllustrativeApply together at the County Clerk and pay the license fee ($30 to $60).
Illinois has a waiting period: 1 day.
IllustrativeJudges and retired judges of courts of record. Witnesses: None. The license is valid for 60 days.
The signed license goes back to the issuing office to be recorded. Order certified copies for name changes, insurance and benefits.
Need the document list and county fees? See Illinois marriage license requirements or the national how to get a marriage license guide.
Apply no more than 60 days before, at least 1 days before.
| Rule | Illinois (2026) |
|---|---|
| Where to apply | County Clerk |
| License fee | $30 to $60, varies by county |
| Waiting period | 1 day |
| License valid for | 60 days |
| Minimum age | 18 (16 with parental consent or court approval) |
| Witnesses | None |
| Officiant | Judges and retired judges of courts of record. Mayors and city/village presidents currently in office. The county clerk, but only in counties with a population of 2,000,000 or more (in practice, only the Cook County Clerk). Ministers, priests, rabbis, and other officiants recognized under the prescriptions of a religious denomination, Indian Nation, Tribe, or Native Group; such groups may also solemnize a marriage without an individual officiant. |
| Common-law marriage | Not recognized |
County Clerk
$30 to $60, varies by county
1 day
60 days
18 (16 with parental consent or court approval)
None
Judges and retired judges of courts of record. Mayors and city/village presidents currently in office. The county clerk, but only in counties with a population of 2,000,000 or more (in practice, only the Cook County Clerk). Ministers, priests, rabbis, and other officiants recognized under the prescriptions of a religious denomination, Indian Nation, Tribe, or Native Group; such groups may also solemnize a marriage without an individual officiant.
Not recognized
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What one Illinois county charges, how booking works and how far ahead to plan, checked against the official page.
Source: Circuit Court of Cook County, checked October 2026. Other counties set their own rules and fees.
Courthouse column from the county source above. Wedding cost from The Knot 2026 Real Weddings Study; venue and officiant lead times from Zola, 2026 wedding planning checklist. See courthouse wedding costs explained.
A short news report on couples choosing courthouse ceremonies as wedding costs rise. Worth two minutes before you weigh a civil ceremony against a $38,000 Illinois wedding.
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$30 to $60
is the license fee to marry in Illinois. The average wedding there runs $38,000.
Illustrative image, not a specific Illinois venue.Illinois runs $3,800 over the US average. Rank 1 is the most expensive state.
State averages are the same figures as our wedding cost calculator. US average $34,200, per The Knot 2026 Real Weddings Study.
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The license is the easy part. It only fits a short window before the day, while venues and photographers book many months out. Here is the national advice next to the Illinois license window.
Average engagement for couples who married in 2024
The Knot 2025 Real Weddings Study (via The Plumb Club)Of couples began planning about 12 months ahead
The Knot 2025 Real Weddings Study (via The Plumb Club)Bars show the advice range from Zola, 2026 wedding planning checklist (updated May 2026), dots the single figure from WeddingWire, vendor booking timeline (2018). These are planning advice, not survey data, and Zola gives two figures for some vendors (venue 11 months in its timeline, 12 to 18 in its FAQ). The license bar comes from Illinois rules.
Apply no more than 60 days before, at least 1 days before. The 1 days wait runs from when the license is issued.
Illinois license rules
IllustrativeDowntown Chicago Marriage Court takes walk-ins Tuesday to Friday. Suburban courthouses are appointment only and publish no booking window, so call the district first.
Circuit Court of Cook County, Marriage and Civil Union
IllustrativeZola puts the venue 12 to 18 months out, photographers and caterers 9 to 12, and save the dates 6 to 8. The license comes last, inside the Illinois window above. Zola's 2026 report also found a few couples now book a venue before they are even engaged (7%, up from 6%).
Zola First Look Report 2026
Illustrative photos: courthouse steps, regional settings and the guest shots couples collect afterwards.
of couples in The Knot 2025 Real Weddings Study married in October, the most popular month in the US. Your own state's peak can sit elsewhere, so check the strip.
The Knot Worldwide, 2025 Real Weddings Study releaseIllinois wedding season runs May through October, and Chicago demand peaks from Memorial Day through Labor Day. September and early October weekends are among the most competitive dates. December through March works indoors, but outdoor plans get hard across the state.
Best month to get marriedBarns, ranches and open country set the look for many weddings here.
Illustrative image, not a specific Illinois venue.
IllustrativeWorld-class architecture, lakefront venues, rooftop terraces, and an unbeatable food and entertainment scene.
IllustrativeElegant estates, arboretums, and ballrooms in the North Shore, western suburbs, and DuPage County.
IllustrativeGalena's charming B&Bs, Springfield's historic sites, and Shawnee wine country offer affordable escapes.
In Cook County you need the license at least one day before the ceremony, and it is valid for 60 days. Fees vary by county ($60 in Cook County). An Illinois license is valid only in the county that issued it, so apply in the county where you will marry.
Some Chicago venues require union staff, which can raise catering and bar costs. Suburban venues often have more flexible vendor rules and lower minimums, so compare itemized quotes before you decide.
Yes. Galena, in far northwest Illinois near the Mississippi River, pairs a walkable historic downtown with Eagle Ridge Resort, which hosts weddings. Many couples treat it as a drive-in wedding weekend. Peak fall weekends book early.
An Illinois license is valid for 60 days. If the ceremony does not happen in that window, the license expires and you must apply again, pay the fee again and wait the one day again. Check the exact expiration date before you leave the clerk's office.
IllustrativeIn Illinois the license takes effect one day after it is issued and is valid for 60 days, only in the county that issued it, so apply where the ceremony will take place. Fees vary by county; Cook County charges $60. The Cook County Clerk, the only Illinois county over 2 million residents, can solemnize marriages, and civil ceremonies run at Cook County Marriage Court in Chicago and at the suburban district courthouses for a $10 administrative fee on top of the license. No witnesses are required to sign. Couples marrying under the rules of a religious denomination may solemnize their own marriage if the certificate is filed within 10 days.
Courthouse or full reception, guests scan one QR code and add photos and videos from the phone browser. No app and no account, and nothing gets lost in group chats.
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Every document, fee and county rule in one place.
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Short answers on cost, license, waiting period, courthouse and witnesses in Illinois.
The legal minimum is the marriage license: $30 to $60 in Illinois. A courthouse ceremony adds a $10 administrative fee plus the license in Cook County (Chicago). The average Illinois wedding runs about $38,000 per The Knot 2026 Real Weddings Study, against a US average of $34,200. That ranks Illinois #9 of 50 states by average cost.
1. Check you can marry. 2. Gather your documents. 3. Apply at the County Clerk. 4. Wait 1 days. 5. Hold the ceremony. 6. Return the license, order copies. The full step list is above.
A Illinois marriage license costs $30 to $60, varies by county. You apply at the County Clerk.
Yes: 1 day. The license is valid for 60 days.
Yes. In Cook County (Chicago), civil ceremonies run at the Cook County Marriage Court in Chicago and at the suburban municipal district courthouses for a $10 administrative fee plus the license. Chicago takes walk-ins Tuesday to Friday (9 to 12 and 2 to 4); suburban courthouses are appointment-only. Rules differ by county, so call the office where you plan to marry.
No witnesses are required by Illinois law. Judges and retired judges of courts of record.
