RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4442 locations in the last 30 days (4607 reports) · Last sighting 15 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

56,705 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/22/20263615 N PIONEER AVEDunning38Completed19 daysMobile DeviceCity 311
7/22/20265203 W ARGYLE STJefferson Park45Completed5 daysMobile DeviceCity 311
7/22/20265357 N LUNA AVEJefferson Park45Completed14 daysMobile DeviceCity 311
7/22/20261337 S CENTRAL PARK AVENorth Lawndale24Completed5 daysMobile DeviceCity 311
7/22/20264007 N PAULINA STLake View47Completed13 daysInternetCity 311
7/22/20263739 N MARSHFIELD AVELake View47Completed13 daysInternetCity 311
7/22/20264312 N ALBANY AVEIrving Park33Completed12 daysInternetCity 311
7/22/20265900 W ROSCOE STPortage Park30Completed8 daysInternetCity 311
7/22/20265903 W ADDISON STPortage Park30Completed9 daysInternetCity 311
7/22/20266538 N TAHOMA AVEForest Glen45Completed9 daysInternetCity 311
7/22/20262713 N MARSHFIELD AVELincoln Park32Completed13 daysMobile DeviceCity 311
7/22/20261943 W SUMMERDALE AVELincoln Square40Completed12 daysMobile DeviceCity 311
7/22/20262050 W WEBSTER AVELogan Square32Completed13 daysMobile DeviceCity 311
7/22/20261401 W HIGHLAND AVEEdgewater48Completed6 daysInternetCity 311
7/22/20264819 N ROCKWELL STLincoln Square40Completed11 daysPhone CallCity 311
7/22/20264042 W 57TH PLWest Elsdon13Completed12 daysMobile DeviceCity 311
7/22/20262827 W BERWYN AVELincoln Square39Completed13 daysInternetCity 311
7/22/20263616 N OAK PARK AVEDunning38Completed13 daysMobile DeviceCity 311
7/22/20266149 W BYRON STDunning38Completed13 daysInternetCity 311
7/22/202610327 S ARTESIAN AVEBeverly19Completed6 daysInternetCity 311
7/22/20262618 W EVERGREEN AVEWest Town26Completed8 daysMobile DeviceCity 311
7/22/20262607 W HADDON AVEWest Town36Completed12 daysInternetCity 311
7/22/20265522 W 64TH STClearing13Completed13 daysInternetCity 311
7/22/20262339 N SPRINGFIELD AVELogan Square35Completed9 daysPhone CallCity 311
7/22/20265504 W 64TH STClearing13Completed13 daysInternetCity 311
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