RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4504 locations in the last 30 days (4677 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.

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

57,792 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/27/20252317 N ORCHARD STLincoln Park43Completed4 daysMobile DeviceCity 311
10/27/202511431 S WESTERN AVEMorgan Park19Completed3 daysPhone CallCity 311
10/27/20253438 W POTOMAC AVEHumboldt Park26Completed2 daysInternetCity 311
10/27/20255233 W CARMEN AVEJefferson Park45Completed7 daysMobile DeviceCity 311
10/27/20255048 N LOCKWOOD AVEJefferson Park45Completed7 daysMobile DeviceCity 311
10/27/20255036 N LOCKWOOD AVEJefferson Park45Completed7 daysMobile DeviceCity 311
10/27/20253441 W POTOMAC AVEHumboldt Park26Completed2 daysInternetCity 311
10/27/20254325 W POTOMAC AVEHumboldt Park37Completed3 daysMobile DeviceCity 311
10/27/2025572 W WILSON DRUptown46Completed4 daysMobile DeviceCity 311
10/27/20254716 N KEDZIE AVEAlbany Park33Completed2 daysMobile DeviceCity 311
10/27/20253659 N HOYNE AVENorth Center47Completed3 daysMobile DeviceCity 311
10/27/20256810 W DEVON AVENorwood Park41Completed2 daysMobile DeviceCity 311
10/27/202510700 S ST LOUIS AVEMount Greenwood19Completed3 daysInternetCity 311
10/27/20252631 S SHIELDS AVEArmour Square11Completed2 daysInternetCity 311
10/27/20252619 S SHIELDS AVEArmour Square11Completed2 daysInternetCity 311
10/27/20253100 N WESTERN AVENorth Center47Completed4 daysInternetCity 311
10/27/20252618 S PRINCETON AVEArmour Square11Completed2 daysInternetCity 311
10/27/20252208 N KNOX AVEBelmont Cragin26Completed3 daysInternetCity 311
10/27/20254252 N TROY STIrving Park33Completed2 daysMobile DeviceCity 311
10/27/20254956 N MOODY AVEJefferson Park45Completed7 daysMobile DeviceCity 311
10/27/20259517 S EUCLID AVESouth Deering7Completed7 daysPhone CallCity 311
10/28/20253355 W WILSON AVEAlbany Park33Completed1 dayInternetCity 311
10/28/20251716 N LARAMIE AVEAustin37Completed1 dayMobile DeviceCity 311
10/28/20253603 S PAULINA STMcKinley Park12Completed6 daysInternetCity 311
10/28/20256138 W THORNDALE AVENorwood Park45Completed6 daysInternetCity 311
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