RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4698 locations in the last 30 days (4851 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
12/2/20256309 S SPAULDING AVEChicago Lawn14Completed0 daysPhone CallCity 311
12/21/20257225 S KEDZIE AVEChicago Lawn18Completed1 dayInternetCity 311
8/6/20266141 S MAPLEWOOD AVEChicago Lawn16Completed6 daysPhone CallCity 311
7/30/20266828 S CAMPBELL AVEChicago Lawn16Completed1 dayPhone CallCity 311
7/21/20262444 W 63RD STChicago Lawn16Completed10 daysMobile DeviceCity 311
6/1/20262626 W 63RD STChicago Lawn16Completed2 daysPhone CallCity 311
4/20/20265914 S RICHMOND STChicago Lawn15Completed1 dayAlderman's OfficeCity 311
6/1/20266728 S ARTESIAN AVEChicago Lawn16Completed2 daysPhone CallCity 311
4/6/20263212 W 65TH STChicago Lawn14Completed3 daysPhone CallCity 311
10/1/20267205 S WHIPPLE STChicago Lawn18Open—Alderman's OfficeCity 311
8/29/20262318 W MARQUETTE RDChicago Lawn16Completed17 daysInternetCity 311
9/29/20267200 S CALIFORNIA AVEChicago Lawn18Open—Phone CallCity 311
3/19/20267154 S ARTESIAN AVEChicago Lawn17Completed0 daysPhone CallCity 311
9/18/20263001 W 59TH STChicago Lawn15Completed13 daysInternetCity 311
7/10/20266939 S OAKLEY AVEChicago Lawn17Completed5 daysPhone CallCity 311
9/24/20266227 S CLAREMONT AVEChicago Lawn16Completed12 daysPhone CallCity 311
3/19/20263343 W 66TH PLChicago Lawn14Completed1 dayPhone CallCity 311
2/18/20266212 S ROCKWELL STChicago Lawn16Completed1 dayInternetCity 311
9/18/20263015 W 59TH STChicago Lawn15Completed13 daysInternetCity 311
8/20/20266828 S CAMPBELL AVEChicago Lawn16Completed12 daysPhone CallCity 311
3/19/20266605 S ROCKWELL STChicago Lawn16Completed1 dayPhone CallCity 311
7/1/20266726 S ARTESIAN AVEChicago Lawn16Completed6 daysInternetCity 311
5/18/20252508 W MARQUETTE RDChicago Lawn16Completed3 daysInternetCity 311
7/4/20263309 W 59TH PLChicago Lawn14Completed4 daysInternetCity 311
11/21/20256828 S CAMPBELL AVEChicago Lawn16Completed4 daysPhone CallCity 311
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