RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4548 locations in the last 30 days (4695 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

55,474 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/8/20265615 S KOLMAR AVEWest Elsdon13Completed8 daysPhone CallCity 311
9/8/20265804 S KENNETH AVEWest Elsdon13Completed14 daysPhone CallCity 311
9/1/20264124 W 56TH PLWest Elsdon13Completed14 daysMobile DeviceCity 311
7/31/20254308 W 59TH STWest Elsdon13Completed4 daysAlderman's OfficeCity 311
8/20/20265536 S KARLOV AVEWest Elsdon13Completed11 daysPhone CallCity 311
7/1/20264019 W 56TH PLWest Elsdon13Completed1 dayPhone CallCity 311
7/27/20265254 S HAMLIN AVEWest Elsdon23Completed9 daysAlderman's OfficeCity 311
9/30/20265724 S PULASKI RDWest Elsdon13Completed8 daysInternetCity 311
7/21/20255408 S MILLARD AVEWest Elsdon23Completed13 daysMobile DeviceCity 311
7/27/20263705 W 58TH STWest Elsdon23Completed9 daysMobile DeviceCity 311
9/8/20265255 S HARDING AVEWest Elsdon23Completed14 daysInternetCity 311
8/24/20265317 S KOSTNER AVEWest Elsdon23Completed8 daysPhone CallCity 311
9/29/20263643 W 56TH STWest Elsdon23Open—Phone CallCity 311
7/31/20254308 W 59TH STWest Elsdon13Completed4 daysAlderman's OfficeCity 311
8/20/20265144 S LAWNDALE AVEWest Elsdon23Completed12 daysPhone CallCity 311
8/14/20265856 S TRIPP AVEWest Elsdon13Completed11 daysInternetCity 311
9/8/20265742 S KILBOURN AVEWest Elsdon13Completed8 daysPhone CallCity 311
7/31/20254300 W 59TH STWest Elsdon13Completed4 daysAlderman's OfficeCity 311
8/31/20265840 S TRIPP AVEWest Elsdon13Completed14 daysInternetCity 311
11/5/20255724 S PULASKI RDWest Elsdon13Completed5 daysInternetCity 311
11/17/20253918 W 55TH PLWest Elsdon23Completed1 dayInternetCity 311
11/21/20253751 W 58TH STWest Elsdon23Completed0 daysMobile DeviceCity 311
11/19/20255153 S HARDING AVEWest Elsdon23Completed2 daysPhone CallCity 311
11/19/20255624 S KILDARE AVEWest Elsdon13Completed1 dayAlderman's OfficeCity 311
11/19/20255802 S TRIPP AVEWest Elsdon13Completed1 dayAlderman's OfficeCity 311
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