IDP Reports

The Regional Economic Research Institute first developed the Industry Diversification Index in Spring of 2016 and updates it on a quarterly basis.

Researchers and academics are encouraged to contact the RERI to request access to the data for use in academic studies and modeling. The IDI begins in 1990 and is computed for each Florida metropolitan statistical area, each Florida workforce region, and each U.S. state. Upon request, the RERI will compute it for any MSA in the United States.

THIRD QUARTER, 2025 - (Vol. 10, No. 3)

The seasonally-adjusted IDI in Southwest Florida remained the same at 5.180 in the first quarter of 2025, ranking 4th out of all 21 workforce regions.

The Naples-Marco Island MSA was the third most industrially diversified MSA in the state (out of 22 total MSAs). Moreover, the Cape Coral-Fort Myers MSA and Punta Gorda MSA ranked 9th and 19th in the state, respectively.
Industry diversification for Florida decreased slightly to 5.205 for the first quarter of 2025, ranking 17th out of 50 states.

FULL REPORT
View past reports

The seasonally adjusted Cape Coral-Fort Myers FGCU Industry Diversification Index (IDI) slightly increased in the first quarter of 2025, registering at 5.072. This was up from the fourth quarter of 2024 (revised to 5.069) but down from the first quarter in 2024 (5.085). The MSA increased to the 9th most diversified MSA in the state, out of 22 total MSAs in Florida. The index registers between 0 and 10, with 0 being the least diversified, and 10 being the most diversified.

Industrial diversification in the Cape Coral-Fort Myers MSA has gradually improved since 2012. The MSA saw quarterly increases in employment from its top three industries: Education and Health Services (up 2 percent), Trade, Transportation and Utilities (up 0.7 percent), and Leisure and Hospitality (up 10.2 percent). Notably, employment in the Information sector fell 5.5 percent from the previous quarter.

Seasonality plays a significant role in the Cape Coral-Fort Myers MSA economy, as it is typical for the MSA to experience its lowest unseasoned IDI measures during the first and fourth quarters of the year, while having its highest unseasoned measures during the second and third quarters.

The Naples-Marco Island seasonally adjusted IDI registered at 5.242 in the first quarter of 2025 — a small decrease from both the last quarter (5.254) and same quarter last year (5.292). Despite the decline, the Naples-Marco Island MSA remained toward the top of the rankings, measured as the third most diversified MSA in the state for the quarter.

The seasonally adjusted IDI measure in the first quarter of 2025 continued a general downward trend for the MSA that began in the 2nd quarter of 2020. The jump and subsequent decline in industrial diversification can be attributed to the impact Covid-19 had on the Leisure and Hospitality sector in the MSA, which saw total employment drop 36 percent from the 1st to 2nd quarter of 2020. Employment in the sector has recovered since then and once again represented one of the largest industries in the 1st quarter of 2025.

The MSA also saw quarter-to-quarter improvements in its three largest industries – Education and Health Services (up 1.4 percent), Leisure and Hospitality (up 9.6 percent), and Trade, Transportation and Utilities (up 0.8 percent). Altogether, the top three industries in the Naples-Marco Island MSA represent 58.3 percent of total employment in the MSA, up 0.3 percentage points from a year ago.

The Punta Gorda seasonally adjusted IDI in the first quarter of 2025 was 4.777 — a small increase from both the last quarter (4.740) and same quarter last year (4.771). The Punta Gorda MSA had the 19th highest IDI in Florida, consistent with the ranking from the previous quarter and from the same quarter the previous year.

The MSA’s seasonal IDI continues to be the least diverse in Southwest Florida with the top five sectors accounting for 82.7 percent of the employment in the MSA and the top three accounting for 63.1 percent. For comparison, the top three industries in Cape Coral-Fort Myers MSA and Naples-Marco Island MSA account for 56.4 and 58.3 percent of total employment, respectively.

Historically, Punta Gorda MSA’s unseasoned IDI has exhibited less seasonal fluctuation than the other two coastal Southwest Florida MSA’s. Because the population in Punta Gorda has one of the highest median ages in the country (second highest median age out of 387 MSAs in the United States¹), the region remains highly concentrated in industries catered towards the elderly, with the Trade, Transportation, and Utilities, Education and Health Services, and Leisure and Hospitality industries accounting for 63.1 percent of total employment in the first quarter of 2025. These permanent residents help support these industries in the Punta Gorda MSA throughout the year.

¹ Source: U.S. Census Bureau, 2023 American Community Survey 5-year estimates, Table B01002: Median Age by Sex

The seasonally-adjusted IDI for the Southwest Florida workforce region —comprising Charlotte, Collier, Glades, Hendry, Lee and Monroe counties—decreased slightly from the fourth quarter of 2024. The region’s seasonal IDI measured 5.180 in the first quarter of 2025, less than both the previous quarter (revised at 5.181) and the first quarter of 2024 (5.199). Despite the decline, the region improved to the fourth most diversified workforce region in the state (was previously 7th out of 21 total regions during the same quarter last year).

The region saw steady year-to-year growth in Leisure and Hospitality (up 2.6 percent), Professional and Business Services (up 4.4 percent), Education and Health Services (up 2.8 percent) and Public Administration (up 3.6 percent) industries. The region saw a moderate decrease in the Information sector (down 8.7 percent). The rest of the industries saw marginal changes, ranging between –1.4 and 1.8 percent.

Historically, the region typically experiences higher unseasoned index measures during the quarters spanning January through June, and lower index measures during the quarters spanning July through December. The higher index measures during the winter period can be attributed to an influx of tourism and seasonal residents, which leads to an increase in demand for both the Retail Trade and Accommodation and Food Service industries to meet the seasonal demand. In return, the increased seasonal demand in these industries create spillover effects for all of the other super sector industries in the region. In addition, the first two quarters of the year are associated with crop harvesting in the region, creating demand in all other sectors of the economy as well. During the second half of the year, there is a higher concentration in fewer industries driven by Construction, Professional and Business Services, Trade, Transportation and Utilities, and Education and Health Services.

Florida’s seasonal IDI measured at 5.205, slightly below both the previous quarter (revised at 5.210) and the first quarter of 2024 (measured at 5.220). Florida rose to the 17th most industrially diversified state in the first quarter, improving from 23rd in the previous quarter and 22nd in the same quarter last year. The highest seasonal IDI for the first quarter of 2025 was Washington (5.701), while the lowest IDI in the nation belonged to Alaska (3.666).

Over the past year, the state has seen moderate improvements in employment for some of its larger industries – Education and Health Services industry (increased 2.4 percent) and Trade, Transportation, and Utilities industry (up 0.4 percent). Most other industries experienced increases in employment over the past year, apart from Information (down 2.4 percent), Natural Resources and Mining (down 1.8 percent), and Unclassified (down 23.1 percent).