RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4595 locations in the last 30 days (4760 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.

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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

53,164 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
12/2/202511040 S HARDING AVEMount Greenwood19Completed1 dayPhone CallCity 311
9/15/202510938 S RIDGEWAY AVEMount Greenwood19Completed9 daysInternetCity 311
7/17/20269339 S MAY STWashington Heights21Completed11 daysInternetCity 311
5/14/20269405 S THROOP STWashington Heights21Completed7 daysPhone CallCity 311
5/21/20269156 S WALLACE STWashington Heights9Completed5 daysPhone CallCity 311
7/28/20259125 S MAY STWashington Heights21Completed8 daysInternetCity 311
5/21/20269156 S WALLACE STWashington Heights9Completed5 daysPhone CallCity 311
7/29/20258916 S JUSTINE STWashington Heights21Completed7 daysPhone CallCity 311
9/9/20269935 S GREEN STWashington Heights21Completed14 daysPhone CallCity 311
2/17/202610540 S MAY STWashington Heights21Completed1 dayInternetCity 311
7/29/20269330 S JUSTINE STWashington Heights21Completed7 daysPhone CallCity 311
9/18/20259421 S LOOMIS STWashington Heights21Completed7 daysPhone CallCity 311
8/20/20259238 S EGGLESTON AVEWashington Heights9Completed9 daysPhone CallCity 311
8/19/20259400 S ADA STWashington Heights21Completed10 daysPhone CallCity 311
7/27/202510102 S LOWE AVEWashington Heights21Completed9 daysPhone CallCity 311
8/18/20259519 S BISHOP STWashington Heights21Completed11 daysInternetCity 311
9/17/20269036 S JUSTINE STWashington Heights21Completed1 dayPhone CallCity 311
7/16/20269421 S LOOMIS STWashington Heights21Completed12 daysPhone CallCity 311
9/18/20268855 S BISHOP STWashington Heights21Open—Phone CallCity 311
9/4/202610650 S ABERDEEN STWashington Heights21Completed13 daysPhone CallCity 311
7/18/20269523 S LOWE AVEWashington Heights9Completed9 daysPhone CallCity 311
3/5/20269930 S ABERDEEN STWashington Heights21Completed1 dayInternetCity 311
8/15/2025516 W 97TH STWashington Heights9Completed12 daysInternetCity 311
9/26/202510556 S GREEN STWashington Heights21Completed7 daysPhone CallCity 311
2/17/2026425 W 100TH PLWashington Heights9Completed1 dayPhone CallCity 311
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