RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4547 locations in the last 30 days (4694 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

55,474 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/10/20253612 W 63RD STWest Lawn23Completed12 daysPhone CallCity 311
9/10/20255737 S ARTESIAN AVEGage Park15Completed8 daysPhone CallCity 311
9/10/20254939 W AINSLIE STForest Glen45Completed8 daysInternetCity 311
9/10/20253311 N KILDARE AVEIrving Park30Completed12 daysAlderman's OfficeCity 311
9/10/20251549 W DIVISION STWest Town1Completed8 daysPhone CallCity 311
9/10/20254150 N BROADWAY STUptown46Completed14 daysInternetCity 311
9/10/20252846 S SPRINGFIELD AVESouth Lawndale22Completed9 daysAlderman's OfficeCity 311
9/10/20252824 N SPAULDING AVEAvondale35Completed9 daysInternetCity 311
9/10/20253808 W 80TH PLAshburn18Completed13 daysAlderman's OfficeCity 311
9/10/20256258 N NAPER AVENorwood Park45Completed8 daysMobile DeviceCity 311
9/10/20253030 W PRATT BLVDWest Ridge50Completed12 daysInternetCity 311
9/10/20258800 S HARPER AVECalumet Heights8Completed8 daysAlderman's OfficeCity 311
9/10/20257825 S SANGAMON STAuburn Gresham17Completed12 daysPhone CallCity 311
9/10/20252229 N KEDVALE AVEHermosa35Completed9 daysAlderman's OfficeCity 311
9/10/20252906 W JARLATH STWest Ridge50Completed12 daysPhone CallCity 311
9/10/20254700 S HARDING AVEArcher Heights14Completed12 daysPhone CallCity 311
9/10/20252526 W FITCH AVEWest Ridge50Completed12 daysInternetCity 311
9/10/20253040 W 84TH STAshburn18Completed13 daysAlderman's OfficeCity 311
9/10/20255825 S MICHIGAN AVEWashington Park20Completed13 daysPhone CallCity 311
9/10/20251949 N HALSTED STLincoln Park43Completed9 daysMobile DeviceCity 311
9/10/20253711 N SPAULDING AVEIrving Park33Completed9 daysInternetCity 311
9/10/20251633 W LE MOYNE STWest Town1Completed12 daysAlderman's OfficeCity 311
9/10/20251607 W LE MOYNE STWest Town1Completed8 daysAlderman's OfficeCity 311
9/10/20251240 W GRACE STLake View44Completed13 daysInternetCity 311
9/10/2025665 W SHERIDAN RDLake View46Completed6 daysMobile DeviceCity 311
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