Museums
$270median per party
116 published prices · United States
$0$600
Middle half: $198.75–$374.25 per party
3 local prices; at least 5 are needed. So this shows the nationwide range.
Museums
Birthday score4/5
How we rateKids can explore more than 50 interactive STEM exhibits during a Science Mill birthday party in Johnson City. The two hour Birthday Party Essentials package includes admission for the birthday child and 20 guests, plus a private room and a dedicated staff member. It costs $230 for nonmembers or $200 for members. Saturday reservations are available in two time slots, and you can book through the online party booking page.
- Price
- From $200 per party
How does the price compare?
Museums: price range from published packages.
Prices from venues in Texas.
This venue: From $200 per party
The dot shows $200 per party.
Middle half (p25–p75)MedianThis venue
Compares published party package prices. Group size, length and what is included can differ; a cheaper package is not always cheaper per child. Prices in the directory are not live offers. The venue's current price applies.
- Address
- 101 South Lady Bird Lane, Johnson City, TX 78636
- Phone
- 844-263-6405
Party packages
Birthday Party Essentials — non-members$230 per party
Admission for the birthday child and 20 guests, dedicated staff member, private room and unlimited exploration of 50+ interactive STEM exhibits
$10 per extra guest. Optional themed hands-on activity costs $50. A $100 non-refundable deposit reserves the date. Subject to availability.
Birthday Party Essentials — members$200 per party
Admission for the birthday child and 20 guests, dedicated staff member, private room and unlimited exploration of 50+ interactive STEM exhibits
$10 per extra guest. Optional themed hands-on activity costs $50. A $100 non-refundable deposit reserves the date. Subject to availability.
Extras and payment
Additional guests cost $10 each. You can add a themed activity for $50. A $100 nonrefundable deposit reserves the date, and the remaining balance is due on the party day.
Our take
4/5The Science Mill in Johnson City is a hands-on science museum with more than 50 interactive exhibits, and its party package keeps things simple. For $230 ($200 for members), the birthday child and 20 guests get admission, a private room for two hours and a staff member who helps run the party. Extra guests are $10 each.
For $50 more, a themed add-on brings a staff-led activity, like making fossils or axolotl slime, plus a matching invitation. Food is arranged separately through a local burger partner. The 20 guests include adults, and standard parties run on Saturday mornings or afternoons. It's about an hour from Austin or San Antonio, so it suits families who don't mind the drive.
Questions to ask Science Mill before booking
These eight points decide whether a party works out and what it really costs. It is easiest to go through them in one phone call.
- How many children fit per party, and when does the price go up?
- Is the room private to our group or shared with other guests?
- How long is the package, and when does the clock start?
- Is a host or activity leader included, or do the parents supervise?
- Can we bring our own cake, drinks or food?
- What costs extra: decorations, food, socks, additional adults?
- Until when can we cancel or reschedule for free?
- Is there space for gifts, coats and the parents' waiting time?
FAQ
What are the Saturday party times?
Choose 10:30 AM to 12:30 PM or 1:30 PM to 3:30 PM, subject to availability.
Does the package limit exhibit exploration?
Both membership price options include unlimited exploration of more than 50 interactive STEM exhibits.
More places in Johnson City
Prices, hours and packages last checked on Oct 21, 2026. Information is provided without guarantee. Please confirm details with the venue before booking.
Is something wrong or out of date? Report a correction.