Memphis Metro Area: Counties, Boundaries, and Population

The Memphis metropolitan area spans three states — Tennessee, Arkansas, and Mississippi — and is defined by federal statistical boundaries that determine how population counts, federal funding allocations, and regional planning decisions are applied. This page covers the official county composition of the Memphis metro, how those boundaries are drawn and revised, the population figures attributed to each jurisdiction, and the critical distinctions between overlapping geographic designations that affect research, policy, and civic administration.

Definition and Scope

The Memphis Metropolitan Statistical Area (MSA) is defined by the U.S. Office of Management and Budget (OMB) as the standard unit for federal statistical reporting across this region. As of the 2023 OMB delineation update, the Memphis MSA encompasses 10 counties across Tennessee, Arkansas, and Mississippi — making it one of a small number of MSAs in the United States that crosses three state lines simultaneously.

The 10 counties included in the Memphis MSA are:

  1. Shelby County, Tennessee — the core county, anchoring the MSA with approximately 929,000 residents (U.S. Census Bureau QuickFacts, Shelby County)
  2. Tipton County, Tennessee — north of Shelby, primarily rural and exurban
  3. Fayette County, Tennessee — east of Shelby, growing suburban corridor
  4. Crittenden County, Arkansas — directly across the Mississippi River from downtown Memphis, containing West Memphis
  5. Mississippi County, Arkansas — north of Crittenden, agricultural and industrial
  6. St. Francis County, Arkansas — further east and rural in character
  7. DeSoto County, Mississippi — immediately south of Shelby County; the fastest-growing county in the MSA by percentage
  8. Marshall County, Mississippi — southeast, largely rural
  9. Tate County, Mississippi — south-central, rural
  10. Tunica County, Mississippi — southwest, historically associated with casino resort development along the Mississippi River

The U.S. Census Bureau uses the MSA as its primary geographic unit for population estimates, housing surveys, and economic data products. The total MSA population, per the Census Bureau's 2022 estimates, stood at approximately 1.34 million residents.

A full breakdown of demographic composition by county is available at Memphis Metro Population and Demographics, and the statistical classification framing is covered at Memphis Metro Statistical Area.

How It Works

OMB defines MSA boundaries based on a principal city — in this case, Memphis, Tennessee — plus surrounding counties that demonstrate "high degrees of economic and social integration" with the urban core, measured primarily through commuting patterns (OMB Bulletin No. 23-01, July 2023). A county qualifies for inclusion when 25 percent or more of its employed residents commute to the central county, or when the central county sends 25 percent of its workers into the outlying county.

This commuting-flow threshold explains why DeSoto County, Mississippi, which shares a border with Shelby County and has developed densely with Memphis-oriented suburbs, is one of the highest-population outlying counties in the MSA. DeSoto County's population exceeded 200,000 per the 2020 Census (U.S. Census Bureau, 2020 Decennial Census), driven by residential growth from workers employed in Shelby County but choosing to live in Mississippi for tax and cost reasons.

OMB revisits MSA delineations after each decennial census and publishes updated bulletins to reflect population shifts. Counties can be added or removed from an MSA between census cycles in limited circumstances. The Memphis Metro Area Overview provides broader context for how this statistical framing affects real-world governance and service planning.

Common Scenarios

The multi-state structure of the Memphis MSA creates several recurring situations in research, planning, and civic administration:

Federal funding allocation: Agencies such as the U.S. Department of Housing and Urban Development (HUD) and the Federal Highway Administration (FHWA) use MSA boundaries to calculate formula grants. A county's inclusion in the Memphis MSA directly affects whether it qualifies for certain urban-area funding streams versus rural programs.

Cross-state commuting and taxation: Workers residing in Crittenden County, Arkansas, or DeSoto County, Mississippi, who are employed in Shelby County, Tennessee, navigate three separate state income tax regimes. Tennessee does not impose a general income tax on wages, while Arkansas and Mississippi do — a structural difference that affects household financial planning and employer payroll compliance.

School district and service boundaries: Despite shared MSA designation, school districts, health departments, and public safety agencies operate under entirely separate state statutes. A resident of Southaven, DeSoto County's largest city, accesses Mississippi-licensed professionals, Mississippi-regulated schools, and Mississippi court systems — none of which are continuous with Shelby County's institutions. The Memphis Metro School Districts page covers this fragmentation in detail.

Housing market analysis: Real estate data products that use MSA boundaries will include DeSoto County and Fayette County housing activity. Analysts comparing "Memphis housing costs" using city-level versus MSA-level data will reach materially different conclusions, because DeSoto County median home prices and Tunica County median home prices differ by a wide margin. See Memphis Metro Housing Market for county-level comparisons.

Decision Boundaries

The Memphis MSA is not the only boundary set used to describe this region, and selecting the wrong one for a given purpose produces analytic or administrative errors.

MSA vs. Combined Statistical Area (CSA): The Memphis MSA is sometimes nested within a broader Combined Statistical Area when OMB determines that adjacent MSAs have meaningful labor-market ties. Researchers using CSA-level data will capture a larger population than those using the 10-county MSA. The Memphis Metro Statistical Area page addresses this distinction explicitly.

MSA vs. City of Memphis: The City of Memphis is a municipality within Shelby County, Tennessee. Its corporate limits cover roughly 324 square miles. The MSA covers approximately 6,300 square miles across 10 counties. Population figures for the "City of Memphis" drawn from Census Bureau municipal data will show approximately 620,000 to 640,000 residents — less than half the MSA total. This is a recurring source of confusion in media and policy documents. The Memphis Metro vs. City of Memphis page maps this distinction directly.

MSA vs. Metropolitan Division: Memphis does not currently qualify for subdivision into Metropolitan Divisions under OMB criteria, which require a core county with a population of at least 2.5 million. This means the Memphis MSA functions as a single, undivided unit in federal data products — a contrast to larger metros such as Dallas-Fort Worth, which are divided into named Metropolitan Divisions.

The home page for this resource situates all of these boundary distinctions within a unified reference framework covering governance, economics, transportation, and civic services across the full Memphis metro region. Detailed county-level data is catalogued separately at Memphis Metro Counties, and the Memphis Metro Mississippi Border page covers the specific administrative dynamics at the Tennessee-Mississippi boundary within the MSA.

References

Read Next

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