ARTICLE
Every year, a new round of numbers makes its way into board presentations, budget hearings, and Chamber conversations: per capita income, net migration, taxable sales, the county's unemployment rate compared to the state. They get treated as settled facts. But where do these numbers actually come from, and how much weight should a business owner put on any single one of them? Here's a look under the hood. It Starts With an Econometric Model, Not a Survey The county-level forecasts that show up in state planning documents, including the ones Caltrans and the California Department of Finance publish for Santa Cruz County, aren't built from a single local survey. They come from econometric models run separately for each of California's 58 counties, built on national, state, and county-level data fed into the model together, according to the Department of Finance's own methodology documentation. In other words, Santa Cruz County's forecast isn't produced in isolation. It's shaped in part by assumptions about the national economy and the state budget, then adjusted down to the local level. That matters for how you read these numbers. A forecast for Santa Cruz County job growth isn't purely a bet on Santa Cruz County. It's partly a bet on the broader economy, filtered through a model that tries to capture how this county tends to move relative to the state and nation. What Each Indicator Is Actually Measuring A few of the figures that show up most often in local economic profiles: Per capita income is the county's total personal income divided by its population. There are actually two versions of this number worth knowing about, and they tell a small story of their own. The Caltrans/DOF forecast profile ranks Santa Cruz County ninth among California's 58 counties using a 2023 figure converted into 2024 dollars, $90,600, just behind Orange and Napa counties. But the U.S. Bureau of Economic Analysis's own county income data, the actual source those forecasts are built from, shows Santa Cruz County's per capita personal income reached $93,580 in 2024, up from $87,608 in 2023. That's the most current actual figure available; BEA typically doesn't release county-level personal income data for a given year until well over a year later, so a 2025 figure isn't out yet. It's a useful gauge of overall prosperity either way, but because it's an average, it can mask a wide gap between the top and bottom of the local income distribution. A county can rank near the top on per capita income and still have serious affordability problems for a large share of its residents, which is exactly the tension Santa Cruz County shows on paper. Net migration tracks how many more people moved into the county than moved out in a given year. Santa Cruz County's net migration was negative 1,100 in 2024, meaning more people left than arrived. That's a meaningful number for local employers because migration, not births and deaths, is usually what drives short-term shifts in the local labor pool. A negative migration number is one reason workforce and housing conversations keep circling back to each other: if the county isn't attracting new residents, growing your workforce means competing harder for the people already here. Taxable sales measure the dollar volume of retail and other taxable transactions in the county, tracked by the California Department of Tax and Fee Administration. Santa Cruz County posted about $4.9 billion in taxable sales in 2024, per the Caltrans/DOF county profile. This is one of the more direct, real-time signals of local economic activity, since it's based on actual transactions rather than a model, which is part of why it gets used to sanity-check the more forward-looking, modeled numbers. Why "County-Level Inflation" Isn't Really a Thing This is the one that surprises people most: there's no such thing as an official Santa Cruz County inflation rate. The Bureau of Labor Statistics only produces detailed Consumer Price Index data for four broad California regions, not for individual counties. Every one of the state's 58 counties gets assigned to one of those four regions, or to a statewide estimate, which means the "inflation rate" attached to Santa Cruz County in any report, including the Caltrans/DOF county profile cited throughout this piece, is really a regional stand-in, not something measured within our county lines. That's why you'll often see Santa Cruz County's inflation figure sitting at 3.1 percent, ranked third-lowest in the state. It's a real number, but it's describing the broader Central Coast or Bay Area region Santa Cruz County has been grouped into, not something calculated from prices at local grocery stores or gas stations. If your own sense of local price pressure feels different from that number, in either direction, that's not necessarily a contradiction. It may just mean local conditions here are diverging somewhat from the regional average that number represents. So How Much Should You Trust Any One Number? The honest answer: as a directional signal, quite a bit. As a precise prediction for your specific business, less than the presentation slide might suggest. These figures are built to be internally consistent across all 58 counties, which makes them genuinely useful for comparison, seeing how Santa Cruz County stacks up against similar coastal counties, or tracking whether a trend is getting better or worse over time. What they're less suited for is telling you exactly what will happen in your specific industry or neighborhood next quarter. The most useful habit, when one of these numbers comes across your desk, is to ask what it's actually measuring, whether it's a hard transaction count like taxable sales or a modeled estimate like the long-run forecast, and what geography it actually represents before the county label gets attached to it. That's usually enough to know whether you're looking at a precise data point or an educated approximation, and both have their place. Why does this matter? None of this is academic. Local businesses use these same figures to make real decisions: whether to open a second location, how to price a new service, what wage to offer a new hire, or how to talk to a lender about growth. A per capita income number that's really describing 2023, or an inflation rate that's really describing the wider Central Coast region, can lead you toward the wrong conclusion if you treat it as a precise, current, hyper-local fact. Knowing where a number comes from, and what it can and can't tell you, is what turns it from a talking point into something you can actually plan around. Sources > California Department of Finance, Long-Run County-Level Forecast Methodology > Caltrans / California Department of Transportation, Santa Cruz County: Demographic and Economic Profile and Long-Run Forecast (2026) > U.S. Bureau of Economic Analysis, via Federal Reserve Bank of St. Louis (FRED), Per Capita Personal Income in Santa Cruz County, CA > California Employment Development Department, Labor Market Information Division, California Economic Indicators (taxable sales source: California Department of Tax and Fee Administration) > U.S. Bureau of Labor Statistics, www.bls.gov
Every year, a new round of numbers makes its way into board presentations, budget hearings, and Chamber conversations: per capita income, net migration, taxable sales, the county's unemployment rate compared to the state. They get treated as settled facts. But where do these numbers actually come from, and how much weight should a business owner put on any single one of them? Here's a look under the hood.
It Starts With an Econometric Model, Not a Survey
The county-level forecasts that show up in state planning documents, including the ones Caltrans and the California Department of Finance publish for Santa Cruz County, aren't built from a single local survey. They come from econometric models run separately for each of California's 58 counties, built on national, state, and county-level data fed into the model together, according to the Department of Finance's own methodology documentation. In other words, Santa Cruz County's forecast isn't produced in isolation. It's shaped in part by assumptions about the national economy and the state budget, then adjusted down to the local level.
That matters for how you read these numbers. A forecast for Santa Cruz County job growth isn't purely a bet on Santa Cruz County. It's partly a bet on the broader economy, filtered through a model that tries to capture how this county tends to move relative to the state and nation.
What Each Indicator Is Actually Measuring
A few of the figures that show up most often in local economic profiles:
Per capita income is the county's total personal income divided by its population. There are actually two versions of this number worth knowing about, and they tell a small story of their own. The Caltrans/DOF forecast profile ranks Santa Cruz County ninth among California's 58 counties using a 2023 figure converted into 2024 dollars, $90,600, just behind Orange and Napa counties. But the U.S. Bureau of Economic Analysis's own county income data, the actual source those forecasts are built from, shows Santa Cruz County's per capita personal income reached $93,580 in 2024, up from $87,608 in 2023. That's the most current actual figure available; BEA typically doesn't release county-level personal income data for a given year until well over a year later, so a 2025 figure isn't out yet. It's a useful gauge of overall prosperity either way, but because it's an average, it can mask a wide gap between the top and bottom of the local income distribution. A county can rank near the top on per capita income and still have serious affordability problems for a large share of its residents, which is exactly the tension Santa Cruz County shows on paper.
Net migration tracks how many more people moved into the county than moved out in a given year. Santa Cruz County's net migration was negative 1,100 in 2024, meaning more people left than arrived. That's a meaningful number for local employers because migration, not births and deaths, is usually what drives short-term shifts in the local labor pool. A negative migration number is one reason workforce and housing conversations keep circling back to each other: if the county isn't attracting new residents, growing your workforce means competing harder for the people already here.
Taxable sales measure the dollar volume of retail and other taxable transactions in the county, tracked by the California Department of Tax and Fee Administration. Santa Cruz County posted about $4.9 billion in taxable sales in 2024, per the Caltrans/DOF county profile. This is one of the more direct, real-time signals of local economic activity, since it's based on actual transactions rather than a model, which is part of why it gets used to sanity-check the more forward-looking, modeled numbers.
Why "County-Level Inflation" Isn't Really a Thing
This is the one that surprises people most: there's no such thing as an official Santa Cruz County inflation rate. The Bureau of Labor Statistics only produces detailed Consumer Price Index data for four broad California regions, not for individual counties. Every one of the state's 58 counties gets assigned to one of those four regions, or to a statewide estimate, which means the "inflation rate" attached to Santa Cruz County in any report, including the Caltrans/DOF county profile cited throughout this piece, is really a regional stand-in, not something measured within our county lines.
That's why you'll often see Santa Cruz County's inflation figure sitting at 3.1 percent, ranked third-lowest in the state. It's a real number, but it's describing the broader Central Coast or Bay Area region Santa Cruz County has been grouped into, not something calculated from prices at local grocery stores or gas stations. If your own sense of local price pressure feels different from that number, in either direction, that's not necessarily a contradiction. It may just mean local conditions here are diverging somewhat from the regional average that number represents.
So How Much Should You Trust Any One Number?
The honest answer: as a directional signal, quite a bit. As a precise prediction for your specific business, less than the presentation slide might suggest. These figures are built to be internally consistent across all 58 counties, which makes them genuinely useful for comparison, seeing how Santa Cruz County stacks up against similar coastal counties, or tracking whether a trend is getting better or worse over time. What they're less suited for is telling you exactly what will happen in your specific industry or neighborhood next quarter. The most useful habit, when one of these numbers comes across your desk, is to ask what it's actually measuring, whether it's a hard transaction count like taxable sales or a modeled estimate like the long-run forecast, and what geography it actually represents before the county label gets attached to it. That's usually enough to know whether you're looking at a precise data point or an educated approximation, and both have their place.
Why does this matter?
None of this is academic. Local businesses use these same figures to make real decisions: whether to open a second location, how to price a new service, what wage to offer a new hire, or how to talk to a lender about growth. A per capita income number that's really describing 2023, or an inflation rate that's really describing the wider Central Coast region, can lead you toward the wrong conclusion if you treat it as a precise, current, hyper-local fact. Knowing where a number comes from, and what it can and can't tell you, is what turns it from a talking point into something you can actually plan around.
Sources
> California Department of Finance, Long-Run County-Level Forecast Methodology > Caltrans / California Department of Transportation, Santa Cruz County: Demographic and Economic Profile and Long-Run Forecast (2026) > U.S. Bureau of Economic Analysis, via Federal Reserve Bank of St. Louis (FRED), Per Capita Personal Income in Santa Cruz County, CA > California Employment Development Department, Labor Market Information Division, California Economic Indicators (taxable sales source: California Department of Tax and Fee Administration) > U.S. Bureau of Labor Statistics, www.bls.gov