Short answer
There is no single number, but it helps to know the norm. Barna found that churched U.S. adults attend about 1.6 times a month, roughly two weekends in five. Light Ark Church in Pomona, California, meets Saturdays, 10:00-11:00 AM, and between gatherings you can talk with the pastor in its app, an AI, clearly disclosed.
Barna published that figure on September 2, 2025, from its long-running tracking surveys of U.S. adults. It is an average for people who do attend. That means the typical churched adult is at church on about two weekends in five and misses the other three. Scripture encourages believers to meet together, "not forsaking our own assembling together" (Hebrews 10:25, WEB), but it does not set a number.
A rhythm you can keep beats a rule you can't. You might choose one Saturday a month and add a small daily habit in between, such as a short prayer or a verse. Light Ark's Gatherings page says, "Church isn't just an hour a week." The app has a Prayer Journal and Bible Search.