Is 850 20th St in a low-crime area?

The current report summarizes crime-related incidents within 5 miles during the last 12 months. HoodScore compares these records with relevant benchmarks, but no report can guarantee future safety.

Why are traffic and medical calls shown separately from crime?

Traffic, medical and fire records are public-safety incidents but are not necessarily crimes. HoodScore separates them to avoid overstating the crime count.

How often is this HoodScore report updated?

The report displays its generated date. Update frequency varies by source and is explained in the HoodScore methodology.

How is the HoodScore calculated?

HoodScore combines nearby crime and offender data into a neighborhood safety score. Visit https://www.hoodscore.com/hoodscore-calculator.html to see how the calculation works.

850 20th St Crime & Safety Report

Unlock the full safety report before making a decision about this neighborhood.

Full report contains 91 offenders within 5 miles and 2553 crime incidents in the last 12 months.

91 Registered Sex Offenders within 5 miles Near 850 20th St, Boulder, CO

19 Rape

50 Child Involved

35 Assault

31 Other

Name / Age / Tags	Arrest / Conviction	Address	Distance	Risk
MCCARTHY, SEAN TIMOTHY 41 years old Child Involved Violent	SEX ASSAULT/CHILD-ATT 2024-12-21T03:16:48 SEX ASSAULT/CHILD-ATT 2024-12-21T03:16:48	37 FOWLER LN ELDORADO SPRINGS, CO, 80025	4.9	Medium
AISNER, MICHAEL DAVID 74 years old Child Involved	SEX EXPLOIT CHILD - VIDEO/20+ ITEMS 2024-12-21T03:16:48	60 NORTH CEDAR BROOK RD BOULDER, CO, 80304	3.8	Medium
ALT, HOWARD GREGORY 60 years old Child Involved	TRAVEL WITH INTENT TO ENGAGE IN ILLICIT SEXUAL CONDUCT 2024-12-21T03:16:48 POSSESSION OF CHILD PORNOGRAPHY 2024-12-21T03:16:48	1936 TIMBER LN BOULDER, CO, 80304	4.1	Medium
AYERS, BRANDON RICHARD 39 years old		2215 FLORAL DR BOULDER, CO, 80304	1.9	Medium
AYERS, BRANDON RICHARD 39 years old Child Involved	CONTRIBUTING TO DELINQUENCY OF MINOR - SEXUAL FACTUAL BASIS 2024-12-21T03:16:48	2215 FLORAL DR BOULDER, CO, 80304	1.9	Medium

2553 Crime & Incidents in the Last 12 Months

376 Severe

183 Medium

246 Low

1748 Other

Crime	Location (Approx.)	Severity	Description
Medical Emergency 07/16/2026 10:58 PM	63rd St, Boulder, CO 80301	Unknown	As discussed during the dispatch call, medic and engine units responded near 63rd Street and Valmont Butte for a male who reports being sick with open wounds on his legs.
Medical Emergency 07/16/2026 10:58 PM	63rd St, Boulder, CO 80301	Unknown	As discussed during the dispatch call, a medical call was reported near 63rd Street in Valmont Butte involving a male who reports he is still sick and has open wounds on his legs.
Medical Emergency 07/16/2026 10:13 PM	Senda Rocosa St, Boulder, CO 80303	Unknown	As discussed during the dispatch call, emergency medical services responded to a 93-year-old male experiencing shortness of breath near Santa Rosa Drive.
Suspicious Activity 07/16/2026 09:40 PM	S Broadway, Boulder, CO 80305	MEDIUM	As discussed during the dispatch call, officers were sent to a possible disturbance after a 911 hang-up at a fuel center on State Highway 7, where a crying female was heard and the caller reported the call was accidental before disconnecting.
Traffic 07/16/2026 09:37 PM	Boulder, CO 80303	LOW	As discussed during the dispatch call, an officer conducted a traffic stop involving one person near the Vista area and issued a citation. The person reportedly appeared to be fine after the stop.

School	Distance
New Vista High School	0.1 mi
University Hill Elementary School	0.3 mi
Boulder High School	0.8 mi
Flatirons Elementary School	1.0 mi
Williamsburg Academy of Colorado	1.2 mi
High Peaks Elementary School	1.3 mi
Boulder Community School/Integrated Studies	1.3 mi
Creekside Elementary School at Martin Park	1.3 mi
Whittier Elementary School	1.3 mi
Mapleton Early Childhood Center	1.5 mi
Casey Middle School	1.6 mi
Bear Creek Elementary School	1.6 mi
Community Montessori School	1.7 mi
Horizons K-8 School	1.7 mi
Eisenhower Elementary School	1.8 mi

Crime & Safety Report for 850 20th St, Boulder, CO