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KooKoo's Nest

4.9 ★★★★★ 436 Google reviews · Plus size clothing in Bismarck, North Dakota

Bridal & formal Boutique

Prom-focused boutique offering formal gowns, tuxedos and casual clothing.

Plan your visit

Hours

Monday Closed
Tuesday 11 AM–6 PM
Wednesday 11 AM–6 PM
Thursday 11 AM–6 PM
Friday 11 AM–5 PM
Saturday 10 AM–2 PM
Sunday Closed

Hours can shift for holidays, trunk shows, and private appointments — worth a quick check before a special trip.

What's on the racks

Clothing categories at KooKoo's Nest, confirmed in shoppers' own reviews and the store's own info — not guessed from the sign out front.

👗 Plus Size Dresses 27 mentions

“Absolutely amazing service, I was deciding between two dresses and staff stayed late for me, and even encouraged me to sleep on it to ensure I chose the right one for me!”

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👰 Plus Size Bridal 3 mentions

“It was also very nice as the bride not having to deal with texting all the groomsmen and making sure they got there try ons done.”

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💃 Plus Size Formal & Prom 4 mentions

“Amazing formal dresses with a variety of styles to choose from.”

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💍 Accessories & Jewelry 2 mentions

“They have a wide selection of formal clothing and accessories, which are reasonably priced.”

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What shoppers say again and again

The things reviewers bring up again and again across 436 Google reviews — with their own words as proof.

📏 actually stocks extended sizes 3 mentions
🛍️ personal styling help 2 mentions

“She helped me find exactly what I was looking for, even when I didn’t know what I wanted myself.”

👗 great dress selection 2 mentions

“Kinzey provided us with excellent service and we found the perfect dress for the occasion.”

💵 good value 2 mentions

“They have a wide selection of formal clothing and accessories, which are reasonably priced.”

From the reviews

I went to KooKoo’s the day before an event. I had rented dresses on Rent The Runway but they were going to end up coming late. So I was scrambling. I happened to find this dress shop on Google and rushed over here.

★★★★★ — Jenny, Oct 2024

This dress store has an amazing variety of dress and party wear. My mom and I both found outfits for my brother's wedding in September. The lady helping us was so extremely helpful and patient and really knew the inventory and what to try on. Good prices and super friendly service.

★★★★★ — Colette, Aug 2023

We went to Kookoo’s to rent suits for my husband and all of our groomsmen. It was a wonderful experience. We went in several times and the owner made sure everything we wanted came to life perfectly.

★★★★★ — Alexis, Sep 2025

I just had the best experience at the KooKoo’s Nest!! I have been struggling to find a mother of the groom dress and Kinsey at the KooKoo’s Nest made it so simple and fun!! I found the perfect dress and accessories. I truly felt beautiful! I couldn’t ask for a better experience! Thank you, Kinsey!!!

★★★★★ — Heidi, Jun 2025

Excerpts from public Google reviews. Read all 436 reviews →

Plus size bridal & formal at KooKoo's Nest

KooKoo's Nest comes up for plus size bridal and formal wear — confirmed on their own site. Two things to know before the trip. First, bridal shopping is usually by appointment — book ahead, and when you call, ask what size range their try-on samples come in. A shop can order almost any gown in your size, but the sample sizes on the floor decide whether you actually get to see yourself in the dress, and the good plus bridal shops stock samples to try, not just to imagine. Second, plan the alterations timeline: gowns and formal dresses typically go through two or three fittings, so the comfortable window is starting your search around 8–10 months before the date and saying yes to a gown by 6.

Check appointments & gowns

Where to find KooKoo's Nest

1019 E Interstate Ave, Bismarck, ND58503

Get directions Facebook

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spotless & cleanfriendly staffgood value

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Listing verified July 2026 from public business records and shopper reviews. Something out of date? Report a correction. Own this store? Claim your listing — it's free.