RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4632 locations in the last 30 days (4782 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

55,179 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/10/20257410 N HOYNE AVERogers Park49Completed12 daysPhone CallCity 311
8/8/20252208 W WILSON AVELincoln Square47Completed12 daysPhone CallCity 311
7/29/20266200 S WOOD STWest Englewood15Completed12 daysAlderman's OfficeCity 311
7/30/20263819 W 83RD PLAshburn18Completed12 daysPhone CallCity 311
8/29/20263238 W BEACH AVEHumboldt Park26Completed12 daysMobile DeviceCity 311
9/11/20263130 S PRINCETON AVEArmour Square11Completed12 daysPhone CallCity 311
7/30/20253243 W 66TH STChicago Lawn14Completed12 daysPhone CallCity 311
9/24/20266449 S NORMANDY AVEClearing13Completed12 daysInternetCity 311
8/28/20254116 N PONTIAC AVEDunning38Completed12 daysInternetCity 311
9/10/20261615 W MONTROSE AVELake View47Completed12 daysMobile DeviceCity 311
8/20/20267349 N RIDGE AVERogers Park49Completed12 daysInternetCity 311
9/6/20265510 N AUSTIN AVEJefferson Park45Completed12 daysMobile DeviceCity 311
9/5/20251912 N SPRINGFIELD AVEHermosa26Completed12 daysMobile DeviceCity 311
7/22/20265649 N ARTESIAN AVEWest Ridge40Completed12 daysMobile DeviceCity 311
8/15/20253221 W VICTORIA STNorth Park39Completed12 daysInternetCity 311
8/14/202610148 S INDIANA AVERoseland9Completed12 daysInternetCity 311
9/2/20265359 W FULLERTON AVEBelmont Cragin36Completed12 daysPhone CallCity 311
7/30/20255145 W MEDILL AVEBelmont Cragin31Completed12 daysMobile DeviceCity 311
7/29/20261425 N CLEAVER STWest Town1Completed12 daysInternetCity 311
8/19/20264112 N MENARD AVEPortage Park38Completed12 daysPhone CallCity 311
8/21/20266235 N KARLOV AVEForest Glen39Completed12 daysMobile DeviceCity 311
8/13/20256639 S KILPATRICK AVEClearing13Completed12 daysAlderman's OfficeCity 311
10/10/20253720 W MCLEAN AVELogan Square26Completed12 daysInternetCity 311
9/10/20263127 W LOGAN BLVDLogan Square35Completed12 daysMobile DeviceCity 311
9/24/20255620 S NEW ENGLAND AVEGarfield Ridge13Completed12 daysInternetCity 311
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