RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4336 locations in the last 30 days (4495 reports) · Last sighting 2 days ago

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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.

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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

52,482 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/5/20269941 S GREEN STWashington Heights21Completed12 daysPhone CallCity 311
7/29/20259941 S GREEN STWashington Heights21Completed7 daysPhone CallCity 311
10/13/20259936 S WALLACE STWashington Heights9Completed2 daysPhone CallCity 311
10/1/20259936 S WALLACE STWashington Heights9Completed9 daysPhone CallCity 311
10/11/20259936 S VAN VLISSINGEN RDSouth Deering7Completed11 daysInternetCity 311
7/31/20259936 S LOWE AVEWashington Heights21Completed12 daysInternetCity 311
4/30/20269936 S COMMERCIAL AVESouth Deering10Completed5 daysMobile DeviceCity 311
8/20/20259935 S WASHTENAW AVEBeverly19Completed15 daysInternetCity 311
9/9/20269935 S GREEN STWashington Heights21Open—Phone CallCity 311
10/23/20259935 S GREEN STWashington Heights21Completed5 daysPhone CallCity 311
7/29/20259935 S GREEN STWashington Heights21Completed7 daysPhone CallCity 311
10/10/20259934 S LOWE AVEWashington Heights21Completed7 daysInternetCity 311
2/10/20269934 S BENSLEY AVESouth Deering7Completed1 dayPhone CallCity 311
2/9/20269934 S BENSLEY AVESouth Deering7Completed1 dayPhone CallCity 311
8/12/20259932 S NORMAL AVEWashington Heights9Completed1 dayPhone CallCity 311
8/28/20259932 S CHARLES STBeverly19Completed11 daysAlderman's OfficeCity 311
9/4/20269930 S ABERDEEN STWashington Heights21Completed13 daysInternetCity 311
10/2/20259930 S ABERDEEN STWashington Heights21Completed6 daysInternetCity 311
3/5/20269930 S ABERDEEN STWashington Heights21Completed1 dayInternetCity 311
9/28/20259928 S WINSTON AVEWashington Heights21Completed5 daysInternetCity 311
3/20/20269928 S GREEN STWashington Heights21Completed4 daysPhone CallCity 311
8/7/20259928 S EMERALD AVEWashington Heights21Completed13 daysPhone CallCity 311
3/16/20269926 S GREEN STWashington Heights21Completed1 dayPhone CallCity 311
10/15/20259923 S WASHTENAW AVEBeverly19Completed5 daysPhone CallCity 311
4/20/20269922 S ABERDEEN STWashington Heights21Completed1 dayInternetCity 311
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