RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4741 locations in the last 30 days (4897 reports) · Last sighting 20 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.

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
8/29/20265246 W WINONA STJefferson Park45Completed16 daysInternetCity 311
7/27/20255850 N MULLIGAN AVENorwood Park45Completed8 daysInternetCity 311
7/22/20255858 N MULLIGAN AVENorwood Park45Completed13 daysInternetCity 311
7/21/20255609 N MILTIMORE AVEJefferson Park45Completed14 daysAlderman's OfficeCity 311
8/31/20265113 W WINDSOR AVEPortage Park45Completed14 daysPhone CallCity 311
7/22/20265654 N MENARD AVEJefferson Park45Completed14 daysInternetCity 311
7/22/20265357 N LUNA AVEJefferson Park45Completed14 daysMobile DeviceCity 311
5/25/20265525 N MONITOR AVEJefferson Park45Completed3 daysMobile DeviceCity 311
8/5/20265946 W HIGGINS AVEJefferson Park45Completed14 daysPhone CallCity 311
7/23/20265728 N MEADE AVENorwood Park45Completed14 daysInternetCity 311
7/28/20255539 N MASON AVEJefferson Park45Completed7 daysMobile DeviceCity 311
7/27/20255531 N MASON AVEJefferson Park45Completed8 daysInternetCity 311
9/1/20264453 N LAMON AVEPortage Park45Completed14 daysAlderman's OfficeCity 311
7/27/20255481 N AUSTIN AVEJefferson Park45Completed8 daysPhone CallCity 311
8/29/20265661 W GOODMAN STJefferson Park45Completed16 daysInternetCity 311
7/14/20267127 N MERRIMAC AVEForest Glen45Completed16 daysPhone CallCity 311
8/30/20265663 W AINSLIE STJefferson Park45Completed15 daysMobile DeviceCity 311
9/29/20265226 N LATROBE AVEJefferson Park45Open—InternetCity 311
7/23/20266173 N NAPER AVENorwood Park45Completed14 daysPhone CallCity 311
9/27/20265427 W CARMEN AVEJefferson Park45Open—Mobile DeviceCity 311
7/23/20254763 N LONG AVEPortage Park45Completed9 daysPhone CallCity 311
8/24/20264919 N LESTER AVEJefferson Park45Completed15 daysPhone CallCity 311
8/31/20265657 W GUNNISONPortage Park45Completed14 daysSalesforce Mobile AppCity 311
8/4/20265031 N NORTHWEST HWYJefferson Park45Completed15 daysMobile DeviceCity 311
6/27/20265750 W LELAND AVEPortage Park45Completed5 daysInternetCity 311
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