RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4332 locations in the last 30 days (4488 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.

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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

56,145 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/25/2025532 W 31ST STBridgeport11Completed7 daysAlderman's OfficeCity 311
9/25/20252142 W ADDISON STNorth Center47Completed8 daysAlderman's OfficeCity 311
9/25/20253923 W 81ST PLAshburn18Completed8 daysPhone CallCity 311
9/25/20256820 S JUSTINE STWest Englewood17Completed11 daysPhone CallCity 311
9/25/20252908 W 63RD STChicago Lawn15Completed11 daysAlderman's OfficeCity 311
9/25/20255042 S LAFLIN STNew City20Completed7 daysPhone CallCity 311
9/25/20252720 W RASCHER AVELincoln Square40Completed7 daysPhone CallCity 311
9/25/20251900 S MILLARD AVENorth Lawndale24Completed8 daysPhone CallCity 311
9/25/20252236 W 81ST STAshburn18Completed8 daysInternetCity 311
9/25/20256524 S KILDARE AVEWest Lawn13Completed12 daysPhone CallCity 311
9/25/20252830 S LOWE AVEBridgeport11Completed6 daysMobile DeviceCity 311
9/25/2025832 N LOREL AVEAustin37Completed7 daysAlderman's OfficeCity 311
9/25/20258429 S BURNHAM AVESouth Chicago7Completed4 daysPhone CallCity 311
9/25/20252442 W THOMAS STWest Town36Completed8 daysMobile DeviceCity 311
9/25/20258451 S ESSEX AVESouth Chicago7Completed4 daysAlderman's OfficeCity 311
9/25/20257137 S MAY STEnglewood17Completed11 daysPhone CallCity 311
9/25/20253681 N ELSTON AVEIrving Park33Completed5 daysMobile DeviceCity 311
9/25/20253700 N SPAULDING AVEIrving Park33Completed7 daysMobile DeviceCity 311
9/25/20253702 N SPAULDING AVEIrving Park33Completed7 daysMobile DeviceCity 311
9/25/20254929 N SAWYER AVEAlbany Park33Completed7 daysPhone CallCity 311
9/25/20254619 N DOVER STUptown46Completed8 daysInternetCity 311
9/25/20258915 S ABERDEEN STWashington Heights21Completed5 daysPhone CallCity 311
9/25/2025930 N RICHMOND STWest Town26Completed11 daysMobile DeviceCity 311
9/25/20251454 W BELLE PLAINE AVELake View47Completed8 daysMobile DeviceCity 311
9/25/20253248 S WALLACE STBridgeport11Completed7 daysMobile DeviceCity 311
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