Name: Chicago Rat and Rodent Sightings
Creator: RatCity

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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

57,594 reports match your filters.

Date	Address	Neighborhood	Ward	Status	Response time	Reported via	Source
10/20/2025	4906 W CONCORD PL	Austin	37	Completed	7 days	Phone Call	City 311
1/10/2026	128 N LARAMIE AVE	Austin	37	Completed	2 days	Mobile Device	City 311
5/19/2026	1634 N LOTUS AVE	Austin	37	Completed	3 days	Phone Call	City 311
10/6/2025	4850 W HADDON AVE	Austin	37	Completed	9 days	Internet	City 311
7/20/2026	128 N LARAMIE AVE	Austin	37	Completed	10 days	Mobile Device	City 311
2/10/2026	5138 W CHICAGO AVE	Austin	37	Completed	1 day	Phone Call	City 311
7/14/2026	1136 N LECLAIRE AVE	Austin	37	Completed	14 days	Phone Call	City 311
10/25/2025	1037 N SPRINGFIELD AVE	Humboldt Park	37	Completed	5 days	Mobile Device	City 311
7/20/2026	130 N LARAMIE AVE	Austin	37	Completed	10 days	Mobile Device	City 311
5/8/2026	915 N SPRINGFIELD AVE	Humboldt Park	37	Completed	4 days	Phone Call	City 311
5/21/2026	854 N HARDING AVE	Humboldt Park	37	Completed	5 days	Phone Call	City 311
5/22/2026	4814 W WABANSIA AVE	Austin	37	Completed	4 days	Phone Call	City 311
1/22/2026	4814 W SUPERIOR ST	Austin	37	Completed	1 day	Phone Call	City 311
2/17/2026	821 N KEELER AVE	Humboldt Park	37	Completed	2 days	Internet	City 311
2/5/2026	1046 N LAVERGNE AVE	Austin	37	Completed	1 day	Internet	City 311
5/19/2026	857 N HARDING AVE	Humboldt Park	37	Completed	7 days	Mobile Device	City 311
10/15/2025	920 N SPRINGFIELD AVE	Humboldt Park	37	Completed	7 days	Phone Call	City 311
10/11/2025	1621 N LINDER AVE	Austin	37	Completed	5 days	Mobile Device	City 311
10/10/2025	1523 N LATROBE AVE	Austin	37	Completed	7 days	Phone Call	City 311
1/27/2026	1001 N PULASKI RD	Humboldt Park	37	Completed	1 day	Phone Call	City 311
6/22/2026	1705 N LINDER AVE	Austin	37	Completed	3 days	Internet	City 311
6/2/2026	552 N LAWLER AVE	Austin	37	Completed	3 days	Phone Call	City 311
5/20/2026	545 N LECLAIRE AVE	Austin	37	Completed	6 days	Phone Call	City 311
2/16/2026	571 N LONG AVE	Austin	37	Completed	2 days	Internet	City 311
7/20/2026	917 N LEAMINGTON AVE	Austin	37	Completed	1 day	Phone Call	City 311

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