RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4508 locations in the last 30 days (4674 reports) · Last sighting 19 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

52,998 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/16/202611257 S MILLARD AVEMount Greenwood19Open—Phone CallCity 311
9/16/20265000 S HOYNE AVENew City15Open—Phone CallCity 311
9/16/20266937 W DIVERSEY AVEMontclare36Open—Phone CallCity 311
9/16/20267806 W THORNDALE AVENorwood Park41Open—Mobile DeviceCity 311
9/16/20263932 W 83RD PLAshburn18Open—Mobile DeviceCity 311
9/16/20266937 W DIVERSEY AVEMontclare36Open—Phone CallCity 311
9/16/20261845 W IOWA STWest Town36Open—Mobile DeviceCity 311
9/16/20267752 S NORMAL AVEGreater Grand Crossing17Open—Phone CallCity 311
9/16/2026152 N PINE AVEAustin37Open—Phone CallCity 311
9/16/20263628 W 85TH PLAshburn18Open—InternetCity 311
9/16/2026939 N ORLEANS STNear North Side27Open—Phone CallCity 311
9/16/2026939 N ORLEANS STNear North Side27Open—Phone CallCity 311
9/16/20264515 N ARTESIANLincoln Square47Open—Salesforce Mobile AppCity 311
9/16/20267251 S RIDGELAND AVESouth Shore7Open—Phone CallCity 311
9/16/20261456 W ELMDALE AVEEdgewater48Open—Phone CallCity 311
9/16/20263644 S DAMEN AVEMcKinley Park12Completed8 daysMobile DeviceCity 311
9/16/20262635 N DRAKE AVELogan Square35Open—InternetCity 311
9/16/20266934 S OAKLEY AVEChicago Lawn17Open—Phone CallCity 311
9/16/20265121 N WINCHESTER AVELincoln Square40Completed7 daysPhone CallCity 311
9/16/20261135 W GRACE STLake View44Open—InternetCity 311
9/16/20265439 W FOSTER AVEJefferson Park45Open—InternetCity 311
9/16/20266810 S TALMAN AVEChicago Lawn16Open—Phone CallCity 311
9/16/20265423 S INGLESIDE AVEHyde Park5Open—InternetCity 311
9/16/20266255 N GREENVIEW AVEEdgewater48Open—Mobile DeviceCity 311
9/16/2026839 N LARAMIE AVEAustin37Open—Phone CallCity 311
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