RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4490 locations in the last 30 days (4656 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.

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

52,998 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/1/2025900 N WINCHESTER AVEWest Town36Completed9 daysPhone CallCity 311
10/6/2025900 N WINCHESTER AVEWest Town36Completed1 dayPhone CallCity 311
12/23/2025900 N SPRINGFIELD AVEHumboldt Park37Completed0 daysInternetCity 311
9/16/2025900 N RIDGEWAY AVEHumboldt Park27Completed13 daysInternetCity 311
7/20/2026900 N PAULINA STWest Town1Completed11 daysMobile DeviceCity 311
12/1/2025900 N DAMEN AVEWest Town36Completed2 daysPhone CallCity 311
10/16/2025900 N DAMEN AVEWest Town36Completed1 dayPhone CallCity 311
9/20/2025900 N DAMEN AVEWest Town36Completed2 daysPhone CallCity 311
7/28/2025900 N DAMEN AVEWest Town36Completed9 daysPhone CallCity 311
2/10/2026900 N DAMEN AVEWest Town36Completed1 dayPhone CallCity 311
3/5/2026900 N DAMEN AVEWest Town36Completed1 dayPhone CallCity 311
4/19/2026900 N DAMEN AVEWest Town36Completed1 dayPhone CallCity 311
9/16/2026900 N CLARK STNear North Side2Completed6 daysMobile DeviceCity 311
4/8/2024900 E 44TH STKenwood4Completed1 dayMobile DeviceCity 311
9/24/2025900 E 40TH STOakland4Completed8 daysAlderman's OfficeCity 311
5/22/2026900 E 103RD STPullman8Completed0 daysPhone CallCity 311
11/7/2025900 E 103RD STPullman8Completed3 daysPhone CallCity 311
12/16/2025900D W ERIE STWest Town27Completed1 dayMobile DeviceCity 311
9/2/20269009 S RIDGELAND AVECalumet Heights8Completed1 dayInternetCity 311
8/6/20259009 S ESSEX AVECalumet Heights7Completed6 daysInternetCity 311
8/26/20269007 S ABERDEEN STWashington Heights21Completed15 daysPhone CallCity 311
8/5/20259004 S DANTE AVECalumet Heights8Completed7 daysAlderman's OfficeCity 311
9/17/20259001 S STATE STChatham6Completed6 daysPhone CallCity 311
11/7/20259001 S RACINE AVEWashington Heights21Completed5 daysPhone CallCity 311
9/19/20259001 S LOOMIS STWashington Heights21Completed11 daysPhone CallCity 311
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