Average Wedding Cost in Illinois (2026)
That's 11% above the US national average of $34,200 — making Illinois a little above the national average (the 9th-most-expensive state of 50).
Source: The Knot 2026 Real Weddings Study. Figures are reported state averages, rounded to the nearest $1,000.
If you're planning a wedding in Illinois, the typical couple spends around $38,000 — but "average" hides a wide range. Guest count, the venue you choose and whether you marry in peak season swing the final number by tens of thousands of dollars. Here's where the money tends to go in Illinois, what it works out to per guest, and the levers that move the total most.
How Illinois compares to the national average
Illinois's $38,000 average is 11% above the $34,200 national average from The Knot 2026 Real Weddings Study. Across the country, state averages run from about $17,000 in Wyoming up to $57,000 in New Jersey — so location alone accounts for a huge share of the difference in what couples pay.
Illinois isn't alone at this price point: it shares its $38,000 average with 1 other state, so couples here spend about the same as those in a handful of similarly-priced states.
Estimated cost breakdown in Illinois
Applying The Knot's national category mix to Illinois's $38,000 average gives a realistic sense of where the money goes. This is an estimate of a typical split — your own breakdown shifts with the choices you make.
| Category | Share | Estimated cost |
|---|---|---|
| Venue & rentals | 27% | $10,260 |
| Catering (food) | 16% | $6,080 |
| Bar & beverages | 6% | $2,280 |
| Photography | 8% | $3,040 |
| Videography | 4% | $1,520 |
| Florals & decor | 9% | $3,420 |
| Music & entertainment | 6% | $2,280 |
| Attire (dress + suit) | 4% | $1,520 |
| Hair & makeup | 2% | $760 |
| Wedding planner / coordinator | 4% | $1,520 |
| Stationery & invitations | 1.5% | $570 |
| Cake & desserts | 2% | $760 |
| Wedding bands | 5% | $1,900 |
| Transportation | 2% | $760 |
| Officiant | 1% | $380 |
| Favors & gifts | 1.5% | $570 |
| Misc & contingency | 1% | $380 |
| Total | 100% | $38,000 |
Estimated split — The Knot's national category percentages applied to Illinois's average, not a state-measured breakdown.
What that works out to per guest
At a typical 117-guest wedding, Illinois's $38,000 average is roughly $325 per guest. Because catering, bar and rentals all scale with headcount, the guest list is the most powerful dial you control: trimming it is the single fastest way to bring a Illinois wedding under budget.
What makes a Illinois wedding cost more or less
- Guest count. The biggest variable. Every head adds catering, bar, rentals and stationery. Cutting 20 guests can save thousands.
- Season & day. Peak Saturdays in late spring and early fall cost the most; off-season, Fridays, Sundays and weekdays can cut venue and vendor prices sharply.
- Venue type. All-inclusive venues, public spaces and non-traditional spots (backyards, restaurants, parks) usually beat full-service event venues.
- Big city vs. countryside. Larger cities in Illinois typically run above the state average, while rural and small-town weddings come in below it.
- Hidden extras. Tips, service charges, overtime, alterations, taxes and postage are why about 3 in 4 couples go over — budget a 5–10% buffer.
Frequently asked questions
How much does a wedding cost in Illinois?
The average wedding in Illinois costs about $38,000, according to The Knot 2026 Real Weddings Study. That is 11% above the US national average of $34,200. What you actually spend depends most on your guest count, venue and time of year — budget weddings come in well under this figure, while large or luxury celebrations run well over it.
Is Illinois an expensive state to get married in?
Illinois is a little above the national average. Its $38,000 average is 11% above the national average. For context, the most expensive state is New Jersey at about $57,000, and the most affordable is Wyoming at about $17,000.
How can I lower my wedding budget in Illinois?
The single biggest lever is the guest list — catering and bar scale directly with headcount, so trimming guests cuts the total fastest. After that: marry off-peak or on a weekday, choose an all-inclusive or non-traditional venue, and keep a 5–10% buffer for the costs couples forget (tips, overtime, alterations, taxes). Our free Budget Builder lets you model any Illinois number and see every line item reconcile.
How much is a wedding per guest in Illinois?
At a typical 117-guest wedding, Illinois's $38,000 average works out to roughly $325 per guest. Because so much of the cost is per-head, a smaller guest list is the most reliable way to bring the total down.