RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4670 locations in the last 30 days (4827 reports) · Last sighting 12 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

55,690 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/14/20267828 S CARPENTER STAuburn Gresham17Completed6 daysPhone CallCity 311
8/14/20268518 S CONSTANCE AVEAvalon Park8Completed12 daysAlderman's OfficeCity 311
8/14/20267846 S CARPENTER STAuburn Gresham17Completed14 daysPhone CallCity 311
8/14/20264341 S PRAIRIE AVEGrand Boulevard3Completed12 daysInternetCity 311
8/14/20266236 S MULLIGAN AVEClearing13Completed11 daysPhone CallCity 311
8/14/20262741 W MAYPOLE AVEEast Garfield Park27Completed17 daysPhone CallCity 311
8/14/20265518 W WILSON AVEPortage Park45Completed13 daysInternetCity 311
8/14/202610708 S ALBANY AVEMount Greenwood19Completed4 daysPhone CallCity 311
8/14/20261909 W TOUHY AVERogers Park49Completed17 daysPhone CallCity 311
8/14/20267560 S COTTAGE GROVE AVEGreater Grand Crossing6Completed10 daysMobile DeviceCity 311
8/14/2026957 W 18TH STLower West Side25Completed13 daysInternetCity 311
8/14/2026854 W ALDINE AVELake View44Completed11 daysPhone CallCity 311
8/14/20263759 N NOTTINGHAM AVEDunning38Completed17 daysInternetCity 311
8/14/2026149 E 119TH STWest Pullman9Completed12 daysPhone CallCity 311
8/14/20263124 N SEMINARY AVELake View44Completed11 daysInternetCity 311
8/14/20264342 W CERMAK RDNorth Lawndale24Completed13 daysPhone CallCity 311
8/14/20264134 W 57TH PLWest Elsdon13Completed11 daysPhone CallCity 311
8/14/2026208 W HURON STNear North Side42Completed3 daysPhone CallCity 311
8/14/20261116 W GRANVILLE AVEEdgewater48Completed13 daysPhone CallCity 311
8/14/20268613 S KOMENSKY AVEAshburn18Completed11 daysPhone CallCity 311
8/14/20263609 N MEADE AVEDunning38Completed11 daysAlderman's OfficeCity 311
8/14/20265413 N NASHVILLE AVENorwood Park41Completed12 daysPhone CallCity 311
8/14/20265119 N WOLCOTT AVELincoln Square40Canceled6 daysMobile DeviceCity 311
8/14/20262223 N KEELER AVEHermosa35Completed11 daysInternetCity 311
8/14/20262223 N KEELER AVEHermosa35Completed11 daysspot-open311-Chicago+WorksCity 311
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