RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4424 locations in the last 30 days (4585 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

56,907 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/20/20261122 W MONTANA STLincoln Park43Completed7 daysInternetCity 311
7/20/20262647 W WILSON AVELincoln Square47Completed11 daysMobile DeviceCity 311
7/20/20267235 W OLIVE AVENorwood Park41Completed9 daysInternetCity 311
7/20/20262907 N KENNETH AVEHermosa31Completed9 daysInternetCity 311
7/20/20261042 W MARQUETTE RDEnglewood16Completed1 dayInternetCity 311
7/20/20267725 S GREENWOOD AVEGreater Grand Crossing8Completed9 daysInternetCity 311
7/20/20267846 S GREENWOOD AVEGreater Grand Crossing8Completed9 daysInternetCity 311
7/20/20266129 S SACRAMENTO AVEChicago Lawn15Completed0 daysInternetCity 311
7/20/2026640 W SCHUBERTLincoln Park43Completed7 daysSalesforce Mobile AppCity 311
7/20/202610521 S WALLACE STRoseland21Completed8 daysPhone CallCity 311
7/20/20268342 S ANTHONY AVEAvalon Park8Completed9 daysPhone CallCity 311
7/20/20262317 W BARRY AVENorth Center32Completed9 daysMobile DeviceCity 311
7/20/20265640 S NEVA AVEGarfield Ridge13Completed2 daysMobile DeviceCity 311
7/20/20262602 W 23RD STSouth Lawndale25Completed8 daysPhone CallCity 311
7/20/20261756 N CLYBOURN AVELincoln Park2Completed2 daysMobile DeviceCity 311
7/19/20265035 N AUSTIN AVEJefferson Park45Completed11 daysInternetCity 311
7/19/20264631 S ARCHER AVEBrighton Park12Completed9 daysInternetCity 311
7/19/20264737 N DRAKE AVEAlbany Park33Completed8 daysMobile DeviceCity 311
7/19/20262434 W AUGUSTA BLVDWest Town36Completed9 daysInternetCity 311
7/19/20261356 W ERIE STWest Town27Completed10 daysInternetCity 311
7/19/2026505 W BELDEN AVELincoln Park43Completed7 daysMobile DeviceCity 311
7/19/20265659 S NATCHEZ AVEGarfield Ridge13Completed10 daysMobile DeviceCity 311
7/19/2026940 N ORLEANS STNear North Side27Completed10 daysMobile DeviceCity 311
7/19/2026849 N ORLEANS STNear North Side2Completed3 daysMobile DeviceCity 311
7/19/2026858 N ORLEANS STNear North Side2Completed3 daysMobile DeviceCity 311
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