Rio, Florida
16 topographic sheets cover this place, the earliest surveyed in 1948 and the latest in 1988. It stands in the Stuart census division. It lies in ZIP code area 34957. It stands on Warner Creek. The Survey maps it on the Saint Lucie Inlet quadrangle. 980 people lived here at the 2020 count. It stands 3 feet above sea level.
Then and now
1948 to 1988The same ground, surveyed 40 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.


Population over time
3 figuresRio fell from 1,028 to 980 between 2000 and 2020. These are the recorded population figures Wikidata holds for this place, reached through the Geographic Names Information System number this page is keyed on rather than by name, so they belong to this place and not to another of the same name. Most are census counts, but not all are: an early figure may be a founding or settlement estimate, and an estimate published within five years of a census is left out. The change column is computed, and is left blank where more than 20 years separate a figure from the one before it, because a gap that long is not a change between two counts.
| Year | People | Change |
|---|---|---|
| 2000 | 1,028 | |
| 2010 | 965 | -63 (-6%) |
| 2020 | 980 | +15 (+2%) |
Topographic sheets covering this place
9 surveys from 16 printed sheetsMatched by testing this settlement's coordinate against the published boundary of every sheet in the United States Geological Survey's historical collection. Each opens the scanned sheet at the Survey.
- 1948 USGS St Lucie Inlet quadrangle1:24000
- 1948 USGS St. Lucie Inlet quadrangle1:24000, 3 printings
- 1950 USGS St. Lucie Inlet quadrangle1:24000
- 1956 USGS Fort Pierce quadrangle1:250000, 4 printings
- 1958 USGS Fort Pierce quadrangle1:250000
- 1959 USGS Fort Pierce quadrangle1:250000, 3 printings
- 1981 USGS Fort Pierce quadrangle1:100000
- 1986 USGS Fort Pierce quadrangle1:100000
- 1988 USGS Fort Pierce quadrangle1:250000
Fires near this place
107 since 1992Regional context, not property-specific evidence. The federal wildfire occurrence database lists 107 fires within 5 miles of Rio between 1992 and 2019, burning about 1,054 acres in total. 27 started naturally. 16 were recorded as arson. Distance is straight-line from the map coordinates, so a fire counted here may appear on a neighbouring settlement's page as well.
| Reported cause | Fires |
|---|---|
| Natural | 27 |
| Misuse of fire by a minor | 17 |
| Arson/incendiarism | 16 |
| Missing data/not specified/undetermined | 13 |
| Recreation and ceremony | 11 |
| Railroad operations and maintenance | 7 |
| Equipment and vehicle use | 5 |
| Debris and open burning | 5 |
| Fireworks | 3 |
| Smoking | 2 |
| Power generation/transmission/distribution | 1 |
The most recent of them, most recent first, with the day each was reported and the service that recorded it.
| Date | Cause | Size | Reported by | Name on the report |
|---|---|---|---|---|
| 4 August 1999 | Natural | 1.0 acres | Florida Forest Service | not named |
| 2 August 1993 | Natural | under an acre | Florida Forest Service | not named |
| 17 August 2000 | Natural | 1.0 acres | Florida Forest Service | not named |
| 16 August 2011 | Natural | 5.0 acres | Florida Forest Service | GOLDEN ROD RD(43) |
| 14 August 1996 | Natural | 15 acres | Florida Forest Service | not named |
| 1 August 1994 | Equipment and vehicle use | 30 acres | Florida Forest Service | not named |
| 9 July 2012 | Natural | 30 acres | Florida Forest Service | SAVANNAH RD. (43) |
| 4 July 2013 | Missing data/not specified/undetermined | 1.0 acres | Florida Forest Service | THE PINES (43) |
Settlements close enough to share some of these fires:
Mines and quarries near this place
1 within 5 milesRegional context, not property-specific evidence. The federal mineral resources record lists 1 working within 5 miles of Rio: 1 producer. All of them still produce. What was taken out: Sand and Gravel, Construction. Distance is straight-line from the map coordinates, so a quarry counted here may appear on a neighbouring settlement's page as well.
| Where | Site | Commodity | Status | Recorded |
|---|---|---|---|---|
| Jensen Mine | Sand and Gravel, Construction | Producer |
Storms near this place
3 since 2011Regional context, not property-specific evidence. The National Weather Service names Rio in 3 storm reports between 2011 and 2014: 1 heavy rain, 1 hail, 1 flood. No death or injury is recorded in these reports. Each account below is quoted exactly as the forecast office filed it, from the NOAA Storm Events Database, and each date opens the federal record of that event.
| When | Event | Place named | Harm | What the report says |
|---|---|---|---|---|
| January 2014 | Flood | Rio | $220,000 | Radar-based rainfall estimates were between 6 and 12 inches across eastern-most Martin County, with most of the rain falling in a 6-hour or less period. The twenty-four hour rain gage total at Stuart was 10.55 inches and 12.00 inches at Nettles Island, but with most of the rain falling in less than 6 hours. Flooding closed many roadways, stranding vehicles. Drainage canals and creeks overflowed. While high water surrounded many subdivisions, businesses and homes, water only entered one building, a Martin County High School, causing an estimated $220,000 in damage. |
| May 2013 | Hail | Rio | - | A weather spotter observed nickel sized hail at the Treasure Coast Mall on US Highway 1 in Jensen Beach. |
| December 2011 | Heavy Rain | Rio | - | US Highway 1 was reduced to one lane for a short time during the morning as flooding impacted the remainder of the road. Several other nearby streets were also flooded and closed at times throughout the day due to persistent rain. Rainfall amounts of 5 to 8 inches were recorded throughout much of Martin County, from southwest of Palm City through Stuart, from the early morning hours through mid evening. |
Nearest settlements
The eight closest, with where each one stands in the county. Distances are straight-line, computed from the Geographic Names Information System coordinates.
| Map | Place | Distance | Sheets |
|---|---|---|---|
| Palm Lake Park | 0.8 miles | 17 | |
| Ocean Breeze Park | 1.5 miles | 16 | |
| Snug Harbor | 1.5 miles | 16 | |
| North River Shores | 1.6 miles | 17 | |
| Stuart | 1.7 miles | 17 | |
| Skyline Heights | 2.0 miles | 16 | |
| Lighthouse Point | 2.2 miles | 17 | |
| Sewall's Point | 2.4 miles | 16 |
Elsewhere
Matched on this settlement's Geographic Names Information System number rather than its name, so it cannot be a different place of the same name in another state.
| Wikipedia article on Rio | An encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied. |
| Wikidata item Q1850968 | The structured record the population and elevation above come from. Public domain (CC0). |
Provenance
This settlement is recorded in the Geographic Names Information System as feature 289712. The sheet list is computed by point-in-boundary test against the United States Geological Survey's historical topographic inventory. Both are works of the United States government and carry no copyright under 17 U.S.C. 105.
Wildfire. Short, Karen C. 2022. Spatial wildfire occurrence data for the United States, 1992-2020 [FPA_FOD_20221014]. 6th Edition. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2013-0009.6 Collected with United States Government funding and usable without additional permissions or fees.
Mines and quarries. USGS Mineral Resources Data System (MRDS) https://mrdata.usgs.gov/mrds/ A work of the United States government, no copyright under 17 U.S.C. 105.
Storms. NOAA National Centers for Environmental Information, Storm Events Database https://www.ncei.noaa.gov/stormevents/ A work of the United States government, no copyright under 17 U.S.C. 105. Narratives are quoted verbatim from the National Weather Service report and are not edited or summarised.








