RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4701 locations in the last 30 days (4854 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
4/3/20266043 S FRANCISCO AVEChicago Lawn15Completed3 daysInternetCity 311
3/5/20265930 S WHIPPLE STChicago Lawn15Completed1 dayMobile DeviceCity 311
8/13/20252237 W 71ST STChicago Lawn18Completed9 daysPhone CallCity 311
9/26/20267217 S CALIFORNIA AVEChicago Lawn18Open—Mobile DeviceCity 311
6/29/20266520 S TALMAN AVEChicago Lawn16Completed8 daysPhone CallCity 311
9/10/20266818 S CLAREMONT AVEChicago Lawn16Completed14 daysPhone CallCity 311
9/8/20256117 S CALIFORNIA AVEChicago Lawn16Completed11 daysInternetCity 311
3/6/20265928 S SAWYER AVEChicago Lawn14Completed3 daysMobile DeviceCity 311
4/28/20266052 S SPAULDING AVEChicago Lawn14Completed2 daysInternetCity 311
11/12/20256501 S MAPLEWOOD AVEChicago Lawn16Completed1 dayMobile DeviceCity 311
5/5/20266043 S SPAULDING AVEChicago Lawn14Completed6 daysPhone CallCity 311
3/4/20266445 S ALBANY AVEChicago Lawn15Completed2 daysMobile DeviceCity 311
6/17/20266015 S SACRAMENTO AVEChicago Lawn15Completed1 dayInternetCity 311
7/31/20256225 S ALBANY AVEChicago Lawn15Completed8 daysMobile DeviceCity 311
11/12/20256551 S CALIFORNIA AVEChicago Lawn16Completed1 dayMobile DeviceCity 311
8/11/20262842 W 63RD STChicago Lawn15Completed2 daysAlderman's OfficeCity 311
8/24/20266727 S ARTESIAN AVEChicago Lawn16Completed15 daysMobile DeviceCity 311
9/5/20256925 S MAPLEWOOD AVEChicago Lawn16Completed11 daysPhone CallCity 311
9/21/20266445 S ALBANY AVEChicago Lawn15Completed10 daysMobile DeviceCity 311
3/5/20263336 W 61ST PLChicago Lawn14Completed4 daysMobile DeviceCity 311
11/9/20256040 S WHIPPLE STChicago Lawn15Completed4 daysInternetCity 311
8/29/20262226 W 69TH STChicago Lawn16Completed12 daysInternetCity 311
2/19/20267036 S WASHTENAW AVEChicago Lawn17Completed1 dayMobile DeviceCity 311
6/15/20266928 S ROCKWELL STChicago Lawn17Completed3 daysMobile DeviceCity 311
8/26/20266854 S CAMPBELL AVEChicago Lawn16Completed15 daysAlderman's OfficeCity 311
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