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678 DOLPHIN Avenue, Key Largo, FL 33037

Single family property built in 1964 with 1,478 sq ft of living area on a 0.24-acre lot in Key Largo, Monroe County. Facts below come from the county property appraiser's public record.

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County just value (tax roll) — not a market value
$613,352
County assessed value (tax roll)
$399,482
Living area
1,478 sq ft
Lot size
0.24 acres (10,374 sq ft)
Year built
1964
Land use
Single family
FEMA flood zone
Not on file yet
County
Monroe County, FL
Parcel ID
fl-54-1461 39 00551300000000

At a glance

Who owns 678 DOLPHIN Ave?
Monroe County property records list RENTZ MICHAEL as the owner of record.
What is the county just value of 678 DOLPHIN Ave?
$613,352 on the Monroe County tax roll (as of January 1). Just value is the property appraiser's figure for property taxes — not a market value.
What is the parcel ID?
fl-54-1461 39 00551300000000 (Monroe County).

Current owner

Owner contact info

Phones, emails and mailing addresses from public Florida records are available to members.

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More on Dolphin Ave

All 20 properties on Dolphin Ave · ZIP 33037 (Key Largo). Values are county just values (tax roll), not market values.

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Source: Florida Department of Revenue parcel roll; data refreshed Jun 25, 2026. Values are county tax-roll figures, not appraisals. How to read these values · Data sources