RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4652 locations in the last 30 days (4808 reports) · Last sighting yesterday

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What am I looking at?

Each circle is a Chicago neighborhood. The number is its report count — click one to zoom in and see individual sightings there.

32080fewer → more

Colors are relative to what’s currently on screen, so they adjust as you switch time ranges.

Zoomed into a neighborhood or zip? Same colors group nearby reports, and a bright dot means that exact spot’s been reported more than once.

Why Chicago keeps score on its rats

Chicago has topped national rankings of the rattiest U.S. cities for over a decade running — a reputation the city itself takes seriously enough to run one of the country’s most active 311 rodent-complaint programs. Every baiting request, burrow report, and complaint filed with the city becomes a public record. RatCity turns that record, plus reports from people who live here, into a map you can actually use: is this block bad? Is it getting worse? Which neighborhood is winning (or losing) the fight this month?

What’s actually on the map

Most of the data is Chicago’s own — every “Rodent Baiting/Rat Complaint” filed through 311, pulled in automatically once a day so the map never goes stale. Layered on top are sightings reported directly by visitors, matched to the same neighborhood and zip-code boundaries the city uses, so a resident’s report and an official 311 complaint carry equal weight on the map.

Reading the map

Circles are sized and colored by how many reports a neighborhood has racked up — blue is quiet, red means trouble. The Day / Week / 30 Days / Year toggle up top changes the window, so you can see whether a neighborhood’s rat problem is a one-week blip or a year-long trend. Whoever’s in the lead gets crowned the neighborhood Rat King in the sidebar, a title that changes hands as new reports come in.

Noticed a rat that isn’t on the map yet? Use “Report a sighting” above — it takes under a minute and goes live as soon as it’s reviewed. Curious about where the data actually comes from or how reports are moderated? See the About page for the full breakdown.

Want more? The blog has weekly trend recaps and guides on Chicago’s rat problem and how to keep it out of your home.

Browse every sighting

54,983 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
3/22/2026156 N MAYFIELD AVEAustin29Completed1 dayPhone CallCity 311
12/20/2025156 N MAYFIELD AVEAustin29Completed2 daysPhone CallCity 311
10/5/2025156 N MAYFIELD AVEAustin29Completed4 daysPhone CallCity 311
9/22/2025156 N MAYFIELD AVEAustin29Completed10 daysPhone CallCity 311
10/21/2025156 N MAYFIELD AVEAustin29Completed1 dayPhone CallCity 311
8/17/20261576 N CLYBOURN AVENear North Side2Completed15 daysMobile DeviceCity 311
5/22/20261579 N MILWAUKEE AVEWest Town1Completed5 daysInternetCity 311
8/24/2026157 N LAPORTE AVEAustin28Completed10 daysPhone CallCity 311
10/7/2026157 N LAPORTE AVEAustin28Open—Phone CallCity 311
3/29/2026157 N LAPORTE AVEAustin28Completed1 dayPhone CallCity 311
9/16/2026157 W DIVISION STNear North Side27Completed12 daysInternetCity 311
3/10/2026159 W BURTON PLNear North Side2Completed3 daysMobile DeviceCity 311
6/26/2026159 W DIVISION STNear North Side27Completed5 daysMobile DeviceCity 311
7/18/2026159 W DIVISION STNear North Side27Completed11 daysMobile DeviceCity 311
5/28/2026159 W GOETHE STNear North Side2Completed5 daysInternetCity 311
7/9/2026159 W GOETHE STNear North Side2Completed14 daysInternetCity 311
9/12/2025159 W NORTH AVENear North Side2Completed5 daysInternetCity 311
9/17/2025159 W NORTH AVENear North Side2Completed12 daysAlderman's OfficeCity 311
8/27/2026159 W NORTH AVENear North Side2Completed18 daysInternetCity 311
10/4/202615 E DIVISION STNear North Side2Open—InternetCity 311
10/7/202615 E ELM STNear North Side2Open—Mobile DeviceCity 311
4/3/202615 E PEARSON STNear North Side42Completed3 daysInternetCity 311
8/24/202615 N LONG AVEAustin37Completed15 daysInternetCity 311
11/9/202515 N LONG AVEAustin37Completed3 daysInternetCity 311
4/17/202615 N LONG AVEAustin37Completed0 daysInternetCity 311
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