Daytime Population: Why Your Corner Is Busy at Noon and Dead at Seven

Two coffee shops open the same month, two miles apart, in neighborhoods with the same household income. One has a line at 8 a.m. and is empty by 3. The other is quiet in the morning and busy on Saturday. Neither owner did anything wrong. They opened in neighborhoods with opposite daytime populations.

The resident count that every demographic report gives you is a midnight number: where people sleep. Most of the money in food, coffee and services is made where people are awake. The Census Bureau publishes that number too; it is just less famous.

The data: LODES

The Longitudinal Employer-Household Dynamics program at the Census Bureau publishes LODES, the Origin-Destination Employment Statistics. It is built from state unemployment-insurance records, so it covers nearly every payroll job in the country, and it reports them at the census-block level in three files:

• •Workplace Area Characteristics: jobs by the block where the work happens, with counts by age, earnings and industry.
• •Residence Area Characteristics: jobs by the block where the worker lives.
• •Origin-Destination: the pairs, how many people live in block A and work in block B.

Add up the jobs in the blocks within a ten-minute walk of a corner and you have the daytime crowd for that corner. Subtract the residents who leave, and you have what is left in a bedroom neighborhood at noon. The latest LODES year Neur uses is 2022.

Three kinds of neighborhood

Importers. Downtowns, office parks, hospital districts, campuses. Workers arrive at 8 and leave at 5, so the daytime population is several times the resident count. These are breakfast, lunch and errand markets: coffee, quick-service food, dry cleaning, lunchtime fitness classes, anything a worker does on a break. They are also dead at 7 p.m. and on weekends unless there is a reason to stay.

Exporters. Bedroom suburbs and residential tracts. Residents leave in the morning, and what is left is parents with young children, retirees, remote workers and the people who serve them. The money is in the evening and the weekend: dinner, day care, salons, kids' activities, home services.

Mixed. Walkable districts where people both live and work, or where an anchor such as a hospital or a university brings people at all hours. These are the rarest and the easiest, because the same door gets a morning crowd and an evening crowd.

A business that matches the wrong pattern can look right on every other number and still fail. The classic case is a dinner restaurant in an office district: the demographics are perfect, the rent reflects the lunch trade, and the room is empty by the time the kitchen is ready.

How to measure it for a corner

1. 1Count residents within a drive. One, three and five miles, from the American Community Survey. This is the number everyone already has.
2. 2Count jobs within a walk. From the LODES workplace file, the jobs inside about half a mile. Compare the two. A ratio of jobs to residents well above one is an importer; well below is an exporter.
3. 3Find the anchors. A hospital, a university, a mall, a stadium, an interchange: each one brings people at predictable hours that neither residents nor jobs explain. Note the hours.
4. 4Match the pattern to the business. Morning and lunch businesses want jobs. Evening and weekend businesses want residents. Anchors add whichever hours they keep.

A Neur report runs these four steps for the location you pick: residents at one, three and five miles, LODES worker counts around the center, the anchors within range with their type, and a ranking of zones on the map by demand and commercial activity. You can also aim the report at an anchor directly, such as "near the medical center," and it searches from there instead of the city center.

What to do with the answer

• •If the corner is an importer and the business is a morning or lunch business: good, and plan the hours accordingly. Close at 3 and save the labor.
• •If the corner is an importer and the business is an evening business: find a different corner, or add a daytime product that pays the rent until 5.
• •If the corner is an exporter and the business is an evening or weekend business: good, and do not expect the lunch trade.
• •If the corner is an exporter and the business is a coffee shop: look for the remote workers, the school pickup and the Saturday morning, because the 8 a.m. commuter line is happening somewhere else.

Run a Neur report for the corner you have in mind and see the residents and the workers on the same map. The guide to choosing a business location covers the rest of the site checklist.