RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4678 locations in the last 30 days (4837 reports) · Last sighting 11 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

56,073 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
12/30/20255259 W ARGYLE STJefferson Park45Completed1 dayPhone CallCity 311
4/17/20265340 N MCVICKER AVEJefferson Park45Completed3 daysAlderman's OfficeCity 311
8/18/20256342 W HIGGINS AVEJefferson Park41Completed7 daysMobile DeviceCity 311
8/12/20255458 N LIEB AVEJefferson Park45Completed10 daysInternetCity 311
7/3/20265807 N MARKHAM AVEJefferson Park45Completed10 daysInternetCity 311
10/4/20256004 W HIGGINS AVEJefferson Park45Completed11 daysInternetCity 311
10/4/20256048 W HIGGINS AVEJefferson Park45Completed11 daysInternetCity 311
4/24/20265360 N LINDER AVEJefferson Park45Completed4 daysMobile DeviceCity 311
9/10/20264801 N CENTRAL AVEJefferson Park45Completed11 daysInternetCity 311
8/23/20255218 N MARMORA AVEJefferson Park45Completed11 daysPhone CallCity 311
7/3/20265711 N MILWAUKEE AVEJefferson Park45Completed10 daysInternetCity 311
10/2/20255427 N MAGNET AVEJefferson Park45Completed8 daysPhone CallCity 311
10/4/20255154 N MCVICKER AVEJefferson Park45Completed11 daysInternetCity 311
10/4/20255140 N MCVICKER AVEJefferson Park45Completed11 daysInternetCity 311
8/4/20255032 N MOBILE AVEJefferson Park41Completed14 daysInternetCity 311
8/17/20255851 N MARKHAM AVEJefferson Park45Completed8 daysMobile DeviceCity 311
10/4/20255133 N MCVICKER AVEJefferson Park45Completed11 daysInternetCity 311
10/2/20255210 N LECLAIRE AVEJefferson Park45Completed8 daysInternetCity 311
8/12/20255356 N LINDER AVEJefferson Park45Completed10 daysInternetCity 311
9/26/20255033 N MONITOR AVEJefferson Park45Completed10 daysMobile DeviceCity 311
8/27/20255502 N MASON AVEJefferson Park45Completed12 daysInternetCity 311
12/18/20255719 N MARMORA AVEJefferson Park45Completed1 dayAlderman's OfficeCity 311
8/23/20255314 W WINNEMAC AVEJefferson Park45Completed12 daysMobile DeviceCity 311
8/16/20255049 N NAGLE AVEJefferson Park41Completed9 daysPhone CallCity 311
8/27/20255337 N LATROBE AVEJefferson Park45Completed12 daysPhone CallCity 311
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