Hesperia (Ἑσπερία) is the Greek word for "evening" — the realm of the Hesperides, the nymph daughters of the evening who tended Hera's golden apples in the far west.
Hesperia is the ancient Greek and Roman name for Italy and Spain — "the land of the evening."
Hesperia does not currently appear in the US Social Security Administration's top 1,000 girls' names, so we don't publish a US rank or birth count for it. That says nothing about the name's standing elsewhere in the world — only that it sits outside the ranked US data we rely on.
In Pythagorean numerology the letters of Hesperia reduce to 9, The Giver. This is a traditional interpretive system, not a factual claim about the name.