RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4709 locations in the last 30 days (4862 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.

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

54,807 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/12/20265750 S SACRAMENTO AVEGage Park14Completed12 daysMobile DeviceCity 311
9/18/20264337 W 21ST STNorth Lawndale24Completed12 daysPhone CallCity 311
7/26/20263504 N ASHLAND AVELake View47Completed12 daysInternetCity 311
8/21/20251907 W PATTERSON AVENorth Center47Completed12 daysMobile DeviceCity 311
7/29/20261934 W EDDY STNorth Center47Completed12 daysInternetCity 311
8/8/20255901 W WARWICK AVEPortage Park38Completed12 daysInternetCity 311
7/31/20255651 S TRIPP AVEWest Elsdon13Completed12 daysAlderman's OfficeCity 311
8/31/20253612 N KILBOURN AVEIrving Park30Completed12 daysInternetCity 311
8/27/20254435 W 55TH STWest Elsdon13Completed12 daysMobile DeviceCity 311
7/30/20266018 N WHIPPLE STWest Ridge50Completed12 daysAlderman's OfficeCity 311
9/11/20263000 S WELLS STArmour Square11Completed12 daysInternetCity 311
8/7/2026879 N MARSHFIELD AVEWest Town1Completed12 daysMobile DeviceCity 311
8/27/2026607 W WRIGHTWOOD AVELincoln Park43Completed12 daysPhone CallCity 311
8/27/20255604 S SAYRE AVEGarfield Ridge13Completed12 daysInternetCity 311
9/3/20251621 N KEDZIE AVEHumboldt Park26Completed12 daysPhone CallCity 311
9/10/20253453 N NEENAH AVEDunning38Completed12 daysAlderman's OfficeCity 311
9/23/20264910 N SPAULDING AVEAlbany Park33Completed12 daysInternetCity 311
8/15/20254500 N SPRINGFIELD AVEAlbany Park33Completed12 daysInternetCity 311
9/2/20263300 N AVERS AVEAvondale30Completed12 daysAlderman's OfficeCity 311
8/29/20261518 N KEYSTONE AVEHumboldt Park26Completed12 daysMobile DeviceCity 311
8/10/20254759 S SPRINGFIELD AVEArcher Heights14Completed12 daysPhone CallCity 311
7/31/20264401 S HALSTED STNew City15Completed12 daysPhone CallCity 311
9/19/20266542 S ALBANY AVEChicago Lawn15Completed12 daysPhone CallCity 311
9/3/20261542 S SPAULDING AVENorth Lawndale24Completed12 daysPhone CallCity 311
9/11/20261936 W FULLERTON AVELogan Square32Completed12 daysMobile DeviceCity 311
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