RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4248 locations in the last 30 days (4405 reports) · Last sighting 22 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

56,389 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/14/20265927 W WASHINGTON BLVDAustin29Completed9 daysPhone CallCity 311
6/26/20265927 W ROSCOE STPortage Park30Completed5 daysPhone CallCity 311
5/23/20265927 W MIDWAY PARKAustin29Completed5 daysMobile DeviceCity 311
10/12/20265927 W ADDISON STPortage Park30Open—Mobile DeviceCity 311
10/7/20255927 S WASHTENAW AVEChicago Lawn16Completed3 daysAlderman's OfficeCity 311
3/9/20265927 S LOOMIS STWest Englewood16Completed1 dayPhone CallCity 311
4/27/20265927 S KARLOV AVEWest Lawn23Completed1 dayPhone CallCity 311
2/9/20265927 N LEONARD AVEJefferson Park39Completed1 dayInternetCity 311
9/9/20265926 W WAVELAND AVEPortage Park38Completed1 dayInternetCity 311
10/31/20255926 W ERIE STAustin29Completed4 daysAlderman's OfficeCity 311
9/15/20265926 S NAGLE AVEClearing13Completed13 daysMobile DeviceCity 311
7/27/20265926 S JUSTINE STWest Englewood16Completed4 daysInternetCity 311
7/27/20265926 N VIRGINIA AVEWest Ridge50Completed9 daysMobile DeviceCity 311
9/10/20265926 N VIRGINIA AVEWest Ridge50Completed4 daysPhone CallCity 311
9/8/20255926 N MULLIGAN AVENorwood Park45Completed10 daysAlderman's OfficeCity 311
5/28/20265926 N EAST EAST CIRCLE AVENorwood Park41Completed6 daysAlderman's OfficeCity 311
8/5/20255925 W WARWICK AVEPortage Park38Completed15 daysInternetCity 311
5/6/20265925 W PATTERSON AVEPortage Park38Completed5 daysInternetCity 311
10/23/20255925 S WASHTENAW AVEChicago Lawn16Completed1 dayPhone CallCity 311
6/10/20265925 S SPAULDING AVEChicago Lawn14Completed1 dayAlderman's OfficeCity 311
9/2/20265925 S SPAULDING AVEChicago Lawn14Completed6 daysInternetCity 311
8/3/20255925 S ROCKWELL STChicago Lawn16Completed8 daysPhone CallCity 311
9/2/20255925 S LOOMIS STWest Englewood16Completed10 daysAlderman's OfficeCity 311
10/30/20255925 S LOOMIS BLVDWest Englewood16Completed1 dayPhone CallCity 311
10/13/20265925 N VIRGINIA AVEWest Ridge50Open—Mobile DeviceCity 311
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