# Old Idaho State Penitentiary, United States: what it is and when to go

> Old Idaho State Penitentiary is a Historical place and former prison in Idaho, United States (Boise, Idaho). Interests: History and Museums and art. The best time to visit is March to October. In June there are 15 h 14 of daylight, and in December, 8 h 46. It has articles in 2 Wikipedias, so it is not one of the busiest places in United States: one to enjoy at a calmer pace. Here is what it is, where it lies, when to come, how to get there and what else is nearby to turn it into a trip.

- Address: https://kokai.app/en/paises/america/estados-unidos/old-idaho-penitentiary/
- Reviewed on: 2026-10-08
- Language: en

## In a nutshell

- **What it is:** Historical place and former prison in Idaho, United States · History, Museums and art
- **Where:** United States · East Old Penitentiary Road 2445, 83712, Boise
- **Best time:** March to October.
- **Nearest airport:** SFO San Francisco, 848 km as the crow flies
- **Website:** [history.idaho.gov](https://history.idaho.gov/old-penitentiary-hours-location)
- **Coordinates:** 43.60225, -116.16221

## What it is and where

Old Idaho State Penitentiary is a Historical place and former prison in Idaho, United States (Boise, Idaho). It has articles in 2 Wikipedias, so it is not one of the busiest places in United States: one to enjoy at a calmer pace.

It is in [Boise, Idaho](https://kokai.app/en/paises/america/estados-unidos/boise/), where this site lists 20 more places to see, 5.3 km from the centre.

Its coordinates are 43.60225, -116.16221; the nearest main airport is San Francisco International Airport (SFO, San Francisco), 848 km as the crow flies. How to get around United States (train, car, bus) is covered in [its country guide](https://kokai.app/en/paises/america/estados-unidos/#moverse).

- [Where it is](https://www.google.com/maps/search/?api=1&query=43.602249%2C-116.162206)
- [Directions](https://www.google.com/maps/dir/?api=1&destination=43.602249%2C-116.162206)

It is one of the [History](https://kokai.app/en/paises/america/estados-unidos/historia/) and [Museums and art](https://kokai.app/en/paises/america/estados-unidos/museos/) places in United States. In [Kokai](https://kokai.app/en/) it is already on your trip map next to the places you save yourself, and it goes into a day's plan with one tap.

## When to go

The best time to visit Old Idaho State Penitentiary is **March to October**.

| Mes | Época | Hours of daylight |
| --- | --- | --- |
| January | Possible | 9 h 06 |
| February | Possible | 10 h 16 |
| March | Best time | 11 h 39 |
| April | Best time | 13 h 13 |
| May | Best time | 14 h 31 |
| June | Best time | 15 h 14 |
| July | Best time | 14 h 56 |
| August | Best time | 13 h 48 |
| September | Best time | 12 h 17 |
| October | Best time | 10 h 46 |
| November | Possible | 9 h 26 |
| December | Possible | 8 h 46 |

In June there are 15 h 14 of daylight, and in December, 8 h 46. Daylight hours are calculated from the site's latitude for the 15th of each month; when planning a full day on foot they matter as much as the weather.

| What you come for | Best time | Possible |
| --- | --- | --- |
| History | March to October | November to February |
| Museums and art | March to October | November to February |

It is not the same trip whatever you come for: Old Idaho State Penitentiary has a different season depending on what you want to do here, and [Kokai](https://kokai.app/en/) puts it in the right month for you.

When to go to United States in general, with its festivals and peak seasons, is in [its country guide](https://kokai.app/en/paises/america/estados-unidos/#cuando-ir).

## Before you go to United States

To enter United States there are 9 things to sort out before you leave, starting with “Book national parks and cars in advance”: they are all, with their deadlines, in [the United States checklist](https://kokai.app/en/paises/america/estados-unidos/#antes-de-salir). Currency: US dollar (USD); plugs: Type A and B · 120 V · 60 Hz (you need an adapter, and check your devices' voltage); emergencies: 911 for everything.

In [Kokai](https://kokai.app/en/) you tick off the checklist inside your trip, and each item reminds you when it is time to do it.

## What is nearby

- [Boise City Natatorium](https://kokai.app/en/paises/america/estados-unidos/boise-city-natatorium/): With kids · 978 m
- [Assay Office](https://kokai.app/en/paises/america/estados-unidos/assay-office/): Historic building in Boise, Idaho, USA · 3.0 km
- [Zoo Boise](https://kokai.app/en/paises/america/estados-unidos/zoo-boise/): Zoo within the City of Boise · 3.3 km
- [Boise Brewing](https://kokai.app/en/paises/america/estados-unidos/boise-brewing/): Brewery · 3.5 km
- [Boise Art Museum](https://kokai.app/en/paises/america/estados-unidos/boise-art-museum/): Art museum in Boise, Idaho · 3.7 km

Distances are as the crow flies. Everything else is in [the United States guide](https://kokai.app/en/paises/america/estados-unidos/).

## More in United States: History

- [Empire State Building](https://kokai.app/en/paises/america/estados-unidos/edificio-empire-state/): skyscraper located in Midtown Manhattan, New York City, USA
- [Golden Gate Bridge](https://kokai.app/en/paises/america/estados-unidos/puente-golden-gate/): suspension bridge on the San Francisco Bay
- [Yellowstone National Park](https://kokai.app/en/paises/america/estados-unidos/parque-nacional-de-yellowstone/): first national park in the world, located in Wyoming, Montana, and Idaho in the United States
- [Mount Rushmore](https://kokai.app/en/paises/america/estados-unidos/mount-rushmore/): mountain in South Dakota featuring a sculpture of four US presidents
- [Central Park](https://kokai.app/en/paises/america/estados-unidos/central-park/): public park at the center of Manhattan in New York City, New York, United States
- [Yosemite National Park](https://kokai.app/en/paises/america/estados-unidos/yosemite-national-park-2/): national park in California, United States

Every United States place under History, each with its season, is on [its page](https://kokai.app/en/paises/america/estados-unidos/historia/).

## Frequently asked questions

### What is Old Idaho State Penitentiary?

It is a Historical place and former prison in Idaho, United States. It has articles in 2 Wikipedias, so it is not one of the busiest places in United States: one to enjoy at a calmer pace.

### When is the best time to visit Old Idaho State Penitentiary?

March to October. In June there are 15 h 14 of daylight, and in December, 8 h 46.

### How do you get to Old Idaho State Penitentiary?

The nearest main airport is San Francisco International Airport (SFO), 848 km as the crow flies. From there, [directions](https://www.google.com/maps/dir/?api=1&destination=43.602249%2C-116.162206) opens the route on the map, and how to get around United States is explained in [its country guide](https://kokai.app/en/paises/america/estados-unidos/#moverse).

### How do I add it to my trip?

With one tap. In Kokai it is already on the United States map, next to the places you save yourself: add it to a day's plan, give it a time and, if you like, get a reminder when you pass nearby.

### What else is around here?

Nearby you have [Boise City Natatorium](https://kokai.app/en/paises/america/estados-unidos/boise-city-natatorium/), [Assay Office](https://kokai.app/en/paises/america/estados-unidos/assay-office/), [Zoo Boise](https://kokai.app/en/paises/america/estados-unidos/zoo-boise/). The rest is in [the United States guide](https://kokai.app/en/paises/america/estados-unidos/).

Data from [OpenStreetMap](https://www.openstreetmap.org/way/421958184), licensed under the ODbL, and from [Wikidata](https://www.wikidata.org/wiki/Q7084260), CC0. More about Old Idaho State Penitentiary on [Wikipedia](https://en.wikipedia.org/wiki/Old_Idaho_State_Penitentiary). Daylight hours are calculated from the latitude. More in [credits](https://kokai.app/en/aviso/#creditos).