United States · Kansas · Iola
Allen County Jail
Data is aggregated from public sources and may be incomplete or out of date. Always verify with primary sources before acting on any figure. See data sources.
For families
How to send mail, money, and visit Allen County Jail
Step-by-step guidance using the United States system — addresses, money services, visit booking, what to bring on your first visit.
Gallery
From Wikimedia Commons (CC-BY-SA where not otherwise stated).
Photo by Paul Borcherding via Wikimedia Commons (CC BY-SA 4.0)
Photo by Paul Borcherding via Wikimedia Commons (CC BY-SA 4.0)
Photo by Paul Borcherding via Wikimedia Commons (CC BY-SA 4.0)
Photo by Paul Borcherding via Wikimedia Commons (CC BY-SA 4.0)
Photo by Gordon Huggins via Wikimedia Commons (CC BY 2.0)
Photo by Paul Borcherding via Wikimedia Commons (CC BY-SA 4.0)
Allen County Jail is a county jail located in Allen County, Kansas. Rated capacity: 79. Data sourced from the HIFLD Prison Boundaries open dataset.
Background
The Old Allen County Jail is a former jail in Iola, Kansas, United States. Built in the late 1860s, it operated as a detention facility for nearly a century before a replacement opened; today, it is the Old Jail Museum, operated by the Allen County Historical Society, and it has been designated a historic site.
Source: Wikipedia article lead, CC-BY-SA.
Capacity
79
Current population
500
Occupancy
633%
Year opened
1869
Operational
Figures from official sources · verified 2 Jun 2026 · methodology
Facility profile
Population held
Mixed/unknown
Opened
1869
Region
Kansas
Security level
Maximum
Death-row facility
No
Conditions
No conditions summary available yet.
Visiting
No visiting information available.
Mailing
No mailing information available.
Practical info
Contact the operator's website for inmate-specific procedures.
Known issues
No major issues documented in our database.
Contact & address
Conditions Risk Score
Derived signal — not a judgement. How it's calculated
- Overcrowding
- 30/30
- Oversight reports
- 0/30
- Structural flags
- 0/15
- Death signals
- 0/15
- Conditions text
- 0/10
What the score is responding to:
- · Extreme overcrowding at 633% of capacity
This facility scores 30. The national average across 7,437 scored United States facilities is 2 — 28 points above national average.
Related facilities
Same country, matched on type + security level where possible.
- Beaufort County Detention CenterWashingtonMaximumCounty jail222% occupancy
- Abbeville County Detention CenterAbbevilleMaximumCounty jail200% occupancy
- Southwest Virginia Regional Jail - TazewellTazewellMaximumCounty jail330% occupancy
- Franklin County Detention FacilitySt. AlbansMaximumCounty jail660% occupancy
- Spartanburg County Main JailSpartanburgMaximumCounty jail152% occupancy
- Anderson County Detention CenterAndersonMaximumCounty jail183% occupancy
Compared to other facilities in United States
7436 peersData completeness
74%How many of our profile fields are populated. We surface this so families and researchers know the limits.
Sources
- HIFLD Prison Boundaries
- HIFLD dataset query
- Wikipedia — Wikimedia Foundation
- HIFLD Prison Boundaries — US Department of Homeland Security â HIFLD Open Data
- Wikidata — Wikimedia Foundation
- Wikidata (Q4731598)
- Wikipedia
- Wikimedia Commons
- See /data-sources for our overall methodology.
Cite this page
Under CC-BY-4.0. Include the URL and access date; the site is a living reference and entries can change.
World Prisons. (2026). Allen County Jail. Retrieved October 15, 2026, from https://worldprisons.com/prisons/allen-county-jail
"Allen County Jail." World Prisons. Accessed October 15, 2026. https://worldprisons.com/prisons/allen-county-jail.
@misc{worldprisons-allen-county-jail,
author = {{World Prisons}},
title = {Allen County Jail},
year = {2026},
url = {https://worldprisons.com/prisons/allen-county-jail},
urldate = {2026-10-15}
}