RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4682 locations in the last 30 days (4839 reports) · Last sighting 10 hours 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.

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

1,102 reports match your filters.

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DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/9/20262052 N CLEVELANDLincoln Park43Open—Salesforce Mobile AppCity 311
10/9/20266937 S PULASKI RDWest Lawn23Open—Mobile DeviceCity 311
10/9/20268453 S HERMITAGE AVEAuburn Gresham18Open—Phone CallCity 311
10/9/20268463 S HERMITAGE AVEAuburn Gresham18Open—Phone CallCity 311
10/9/202612937 S BALTIMORE AVEHegewisch10Open—Mobile DeviceCity 311
10/9/20266913 W FARRAGUT AVENorwood Park41Open—InternetCity 311
10/9/20263858 N SAWYER AVEIrving Park33Open—Phone CallCity 311
10/9/20262249 W ARTHUR AVEWest Ridge50Open—Mobile DeviceCity 311
10/9/20261835 N LINDER AVEAustin37Open—Mobile DeviceCity 311
10/9/20262239 W CORTLAND STLogan Square32Open—Mobile DeviceCity 311
10/9/20263574 W WABANSIA AVEHumboldt Park26Open—InternetCity 311
10/9/20265612 S MERRIMAC AVEGarfield Ridge13Open—InternetCity 311
10/9/20268353 S PHILLIPS AVESouth Chicago7Open—InternetCity 311
10/9/20263411 S RACINE AVEBridgeport11Open—Mobile DeviceCity 311
10/9/20262918 S LOWE AVEBridgeport11Open—Mobile DeviceCity 311
10/9/20263506 S ROCKWELL STBrighton Park12Open—Mobile DeviceCity 311
10/9/2026539 W 45TH PLNew City15Open—Mobile DeviceCity 311
10/9/20261125 W 31ST STBridgeport11Open—Mobile DeviceCity 311
10/8/2026959 W 35TH PLBridgeport11Open—Phone CallCity 311
10/8/20263441 S MORGAN STBridgeport11Open—Phone CallCity 311
10/8/20265938 W WAVELAND AVEPortage Park38Open—Mobile DeviceCity 311
10/8/202611518 S LASALLE STWest Pullman9Open—InternetCity 311
10/8/20265440 N LIEB AVEJefferson Park45Open—Mobile DeviceCity 311
10/8/20263735 N NOTTINGHAM AVEDunning38Open—InternetCity 311
10/8/20266015 S MICHIGAN AVEWashington Park20Open—Phone CallCity 311
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