Geulah is from the Hebrew גְּאוּלָה (Gəʾūlāh — redemption, deliverance) — from Hebrew gāʾal (to redeem/buy back). Geulah is one of the Hebrew feminine names — central to traditional Israeli + Jewish heritage. Hebrew feminine name reflecting Jewish theological-eschatological heritage.
Geulah 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.
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In Pythagorean numerology the letters of Geulah reduce to 9, The Giver. This is a traditional interpretive system, not a factual claim about the name.