What's the right number of constituents for a federal, state & local legislator?

In 2020, California senators have 39,400,000 constituents while a Wyoming senator has 700,000. In the house each member has about 761,169 constituents. In 1790, a House member represented roughly 35,000 people.

In 1.4 BILLION people China, the National People's Congress (NPC) has roughly one deputy for every 700,000 people. This is based on a formula used to allocate seats, where 2,000 seats are allocated based solely on population & 1000 more at large & special reps.

In my home state new York:

The 2020 Census, New York state senators (63:total) represented an average of 320,885 residents & in the assembly (150) representatives represented an average of 134,772 residents.

In NYC, the city council an average member represents a district of approximately 160,000 people. The Council is comprised of 51 members, each elected to a four-year term.

So how does your nation compare? What's too big? What's too little?

What's the right number of constituents for a federal, state & local legislator?
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