RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4582 locations in the last 30 days (4741 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.

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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

53,552 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/27/20262229 W MEDILL AVELogan Square32Completed14 daysInternetCity 311
8/26/20258420 S MACKINAW AVESouth Chicago10Completed14 daysAlderman's OfficeCity 311
8/20/202611154 S ESMOND STMorgan Park19Completed14 daysInternetCity 311
8/6/20264847 S WINCHESTER AVENew City15Completed14 daysMobile DeviceCity 311
8/27/202510102 S PRINCETON AVERoseland9Completed14 daysPhone CallCity 311
9/10/20266818 S CLAREMONT AVEChicago Lawn16Completed14 daysPhone CallCity 311
7/29/2026843 W BUCKINGHAM PLLake View44Completed14 daysMobile DeviceCity 311
8/26/20251522 S PRAIRIE AVENear South Side3Completed14 daysInternetCity 311
8/27/20264837 N CENTRAL AVEJefferson Park45Completed14 daysMobile DeviceCity 311
9/9/20251457 N MONITOR AVEAustin29Completed14 daysPhone CallCity 311
8/28/20251648 S LAWNDALE AVENorth Lawndale24Completed14 daysAlderman's OfficeCity 311
9/14/20261430 W OHIO STWest Town1Completed14 daysInternetCity 311
7/28/20258419 S ADA STAuburn Gresham17Completed14 daysPhone CallCity 311
9/9/20265144 W ROSCOE STPortage Park31Completed14 daysMobile DeviceCity 311
8/6/20263943 W ADDISON STAvondale30Completed14 daysInternetCity 311
7/22/20253416 N SHEFFIELD AVELake View44Completed14 daysInternetCity 311
8/7/20263855 N LAWNDALE AVEIrving Park30Completed14 daysInternetCity 311
9/14/20263623 N PIONEER AVEDunning38Completed14 daysMobile DeviceCity 311
8/22/20253359 N AUSTIN AVEPortage Park30Completed14 daysInternetCity 311
8/19/20254301 W HADDON AVEHumboldt Park37Completed14 daysAlderman's OfficeCity 311
8/26/20258500 S MACKINAW AVESouth Chicago10Completed14 daysAlderman's OfficeCity 311
8/7/20265317 W NEWPORT AVEPortage Park30Completed14 daysMobile DeviceCity 311
8/26/20252253 W FOSTER AVELincoln Square40Completed14 daysInternetCity 311
8/26/20258403 S MACKINAW AVESouth Chicago10Completed14 daysAlderman's OfficeCity 311
9/2/20262315 N KILDARE AVEHermosa31Completed14 daysAlderman's OfficeCity 311
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