What’s your plan to tap into the 8,454 events with more than 1,000 people in the USA in September 2021? Leading Demand Indicators Report

Published on September 05, 2021
Matthew Hicks
Director of Data Assurance

The week this is published, there will be 2,432 events across the USA with more than 1,000 attendees. Next week there will be 2,548. So every single day, there are hundreds of opportunities for businesses to tap into predictable demand surges. Few businesses can afford to miss out on them. In this week’s Leading Demand Indicators report, we show you where they are and how to access more information on each impactful event for your demand.

Everyone’s sick of talking about the pandemic, which forced businesses to accelerate their digital transformation strategies rapidly. It also blew up demand forecasting. McKinsey’s Chief Data Officer puts it well:

“In a few short months, consumer purchasing habits, activities, and digital behavior changed dramatically, making pre-existing consumer research, forecasts, and predictive models obsolete. Moreover, as organizations scrambled to understand these changing patterns, they discovered little of use in their internal data. Meanwhile, a wealth of external data could—and still can—help organizations plan and respond at a granular level.”

So, let’s get into some critical external data for your demand forecasting and planning - our demand intelligence into the events that will be driving demand anomalies. Knowing how demand will fluctuate enables you to prepare with confidence.

September at a glance

In September 2021, there will be:

  • 12,875 events with more than 300 people attending

  • 8,456 events with more than 1,000 people attending

  • 3,382 events with more than 5,000 people attending


What kinds of events? PredictHQ tracks 19 categories of impactful events, and in September some of the ones to watch are:

  • 3,224 concerts with more than 1,000 attendees

  • 2,489 sports games with more than 1,000 attendees

  • 1,721 festivals with more than 1,000 attendees

  • 322 expos with more than 1,000 attendees

Here is a quick week view for the week this report is published with just the largest events across the USA:


But to include impactful events in your demand forecasting models or demand + operations planning, you’ll need to know where they are, what time they start and finish, how many people are attending each and more. PredictHQ is constantly reverifying events as there is still is a notable (but declining) amount of postponements and cancellations, making event data even more dynamic.

Get in touch with our team to get access to our demand intelligence, which includes all these details and more, but at a glance here are some of the busiest cities in September:

  • 162 with more than 1,000 people in Chicago

  • 137 events in Houston

  • 94 in Philadelphia

  • 91 in Minneapolis

  • 90 in New York City

  • 64 in San Francisco

  • 80 in Denver

The challenge confronting businesses around staffing, inventory and supply chain management is how fragmented the event recovery is, and also how widespread it is now. Let’s take a closer look at that heat map.


We would love to give you the details of every single impactful event in September so you can plan with confidence. It’s why PredictHQ exists. But there are so many impactful events that it’s not feasible in a blog post. Our team can help you pinpoint which events are most impactful for your business (we have seven years of verified historical data), and we have a free trial for developers and data scientists to test our data.

But below is a list of some of the largest. Keep in mind that this report only covers seven of 19 event categories - and doesn’t include major demand drivers such as academic events, school holidays, public holidays and observances. 

  1. Washington State Fair in Puyallup, Washington from September 3 to 26 with 880,000 people expected to attend.

  2. Mount Angel Oktoberfest in Oregon from September 16 to 19 with 300,000 people expected to attend.

  3. New Mexico State Fair in Bernalillo County from September 9 to 19 with 560,000 people expected to attend.

  4. Chicago In Tune in Chicago from August 19 to September 19 with 320,000 people expected to attend.

  5. Halloween Horror Nights at Universal Studios Plaza in Orlando, Florida from September 3 to October 31 with 600,000 people expected to attend.

  6. Neptune Festival Art & Craft Show at Virginia Beach, Virginia from September 24 to 26 to 320,000 people expected to attend.

  7. Bloomsburg Fair in Columbia County, Pennsylvania from September 24 to October 2 with 320,000 people expected to attend.

  8. Colorado State Fair at the state fairgrounds in Pueblo, Colorado from August 27 to September 6 with 373,000 people expected to attend.

  9. Feast of San Gennaro across New York State from September 16 to 26 with up to 1 million  people expected to attend.

  10. Best in the West Rib Cook-Off in Washoe County, Nevada from September 1 to 6 with 360,000 people expected to attend.

And these are just 10 of the 8,400+ events with more than 1,000 attendees in September 2021, and events don’t need 1,000 attendees to be impactful. Get in touch to get the demand intelligence your team needs to make the most of these opportunities.

PredictHQ is supplying our customers with impactful events across the world, both verified and standardized, from 19 categories in one API

To find out how leading companies such as Uber, Domino’s and major hotel chains are using this data, explore our use cases

We publish fortnightly editions of this Leading Demand Indicators report. Sign up to receive it in your inbox.