Meeting space in Caldwell
What it takes to run an event in Caldwell, Idaho: 7 mapped venues, their stated capacities, and the travel around them. Boise Airport is 39 km (24 mi) out.
What Caldwell has to put people in
Caldwell has a recorded population of 73,088 (2024), inside the Boise City, ID area of about 846,000 people.
What is on the books here: 1 arena or stadium and 6 independent event spaces.
By type that is 6 event spaces and 1 stadium.
Arenas and stadiums (1)
| Venue | Type | Stated capacity | From the centre |
|---|---|---|---|
| Simplot Stadium | stadium | not published | 1.7 km (1.1 mi) |
Independent event spaces (6)
| Venue | Type | Stated capacity | From the centre |
|---|---|---|---|
| Trolly Station Event Center | event space | not published | 7.3 km (4.5 mi) |
| Portia Club | event space | not published | 50 km (31 mi) |
| Branson Hollow | event space | not published | 15 km (9.3 mi) |
| Vale Hotel and Grand Opera House | event space | not published | 57 km (35 mi) |
| The Barn | event space | not published | 50 km (31 mi) |
| White Opal | event space | not published | 36 km (22 mi) |
Every venue mapped in Caldwell appears above. The ones with enough published detail to be worth reading have their own guide and are linked; the rest are named here, which is honest about what the record holds without giving each of them a page made of three facts.
Arrival logistics
Boise Airport (BOI) is 39 km (24 mi) away, far enough that arrival day is genuinely a travel day and a first session before noon will lose people.
Local time is Boise time (America/Boise) — set every session time in the app to that zone and let attendees' phones do the conversion.
Nampa, Meridian and Boise are close enough to draw from for a day rate, and to fall back on if Caldwell has nothing free on your dates.
- Nearest major airport
- BOI
- Boise Airport, 39 km (24 mi)
- Local time
- UTC−6
- America/Boise, in September
- City population, 2024
- 73,088
- 846,000 across the Boise City, ID area
Things that catch organizers out here
No exhibition hall on record
Nothing in the Caldwell dataset is classified as a convention or exhibition centre, so a trade floor needs either an arena floor, a fairground, or a nearby city. Check the arena listings above before you promise exhibitors a booth plan.
No published capacities
Not one Caldwell venue publishes a capacity in the open sources behind this page. Every room on the list will quote you a number directly, but you cannot compare them before you call, so build a fortnight of venue calls into the plan.
The city is smaller than the market
73,088 people live in Caldwell itself, but about 846,000 live in the wider Boise City, ID. Your local audience is far bigger than the city line suggests, and so is the commute your day-rate attendees will make.
Pricing this against a real Caldwell room
A Caldwell programme at 240 activated attendees — a mid-sized Caldwell programme, since no Caldwell venue publishes a capacity in open data — prices like this. Nothing is charged for the first 50, and nothing at all is charged past 1,000.
- activated attendees
- 240activated attendees
- billable, after the first 50 are free
- 190billable, after the first 50 are free
- for the whole event, at $5 each
- $950for the whole event, at $5 each
You are billed for people, not for the venue, so the room you choose in Caldwell does not change this figure. Nothing is charged for an attendee who registers and never opens the app.
Matching the room to the format
No capacity is published for any Caldwell venue, so match the format to the room on your site visit rather than to a number on a listing.
- community meetings
Nothing in Caldwell publishes a capacity, so start with the format that scales down: a single room, one track, no exhibition.
- networking mixers
A mixer works in almost any room, which makes it the safe first event in a new city.
Where this data comes from
- GeoNames, CC BY 4.0
- US Census Bureau, Vintage 2024 estimates
- Wikidata, CC0
- Geographic data © GeoNames, licensed under CC BY 4.0.
- Venue data © OpenStreetMap contributors, available under the Open Database License.
- US population figures are US Census Bureau Vintage 2024 estimates.
- Retrieved 3 September 2026. event67 has no commercial relationship with any venue listed.
Last updated
What it costs
- Free up to 50
- activated attendees, on one live event
- $5
- per activated attendee beyond 50
- $4,750
- the most one event can ever cost, whatever happens past 1,000
Activated means the person claimed their invite and opened the app. Not when you import them, not when the invite is delivered, and not if they register and stay home.
Questions people actually ask
Price a Caldwell event at 240 attendees — what is the total?
240 activated attendees means 190 billable after the free 50, so $950 for the event. The price is $5 per activated attendee beyond the first 50, and the total for one event stops at $4,750 however many more attend. Activated means the person claimed their invite and opened the app. Not when you import them, not when the invite is delivered, and not if they register and stay home.
How big an event can Caldwell hold?
No Caldwell venue publishes a capacity in the open sources behind this page, so there is no honest number to quote. 7 venues are mapped here and each will quote a capacity directly. Ask for the seated, theatre and reception figures separately — they differ by a factor of two or more in the same room.
Can you run a trade show in Caldwell?
Nothing in the Caldwell dataset is classified as a convention or exhibition centre. A trade floor here means an arena floor, a fairground or a venue in a nearby city such as Nampa. For a conference without an exhibition, the 7 venues on this page are the field.
Which airport do attendees fly into for Caldwell?
Boise Airport (BOI), about 39 km (24 mi) from the city. It is the highest-traffic airport within reach in this dataset. Local time is America/Boise; publish every session in that zone and let attendees' phones convert it.
Can I run a small Caldwell event on event67 for nothing?
One live event with up to 50 activated attendees costs nothing. Beyond that it is $5 per activated attendee beyond the first 50, and the total for one event stops at $4,750 however many more attend. Activated means the person claimed their invite and opened the app. Not when you import them, not when the invite is delivered, and not if they register and stay home.
Keep reading
Nearby cities
- Holding an event in Nampa
6 venues mapped
- Holding an event in Meridian
4 venues mapped
- Holding an event in Boise
23 venues mapped
- Holding an event in Twin Falls
14 venues mapped
Up a level
What kind of event is it
Running something in Caldwell?
Set the schedule, invite the room and watch who actually turns up. Free for your first 50 activated attendees, on one live event.