What is the current population of the United States as of 2025?

1. The Census Bureau’s official baseline: 341.1 million on Jan 1, 2025

The U.S. Census Bureau’s Population Clock projected that the population would reach 341,145,670 at midnight Eastern Standard Time on January 1, 2025, a figure the Bureau published as its New Year estimate and which underlies many official discussions about the nation’s size at the outset of 2025 ^{[6] [1]}. The Bureau’s real‑time clock and its intercensal estimates are the federal government’s operational standard for current population accounting, and the Jan 1 figure is explicit rather than model‑projected into midyear ^{[7] [6]}.

2. Midyear and alternative official tallies: about 342.0 million on July 1, 2025

Some summaries and reference works report the Census Bureau’s midyear (July 1) estimate for 2025 at roughly 342,034,432, a slightly higher number because standard demographic reporting often uses midyear snapshots for comparability across years and countries ^[2]. That midyear convention explains part of the spread between January 1 and July 1 reporting and is important when comparing U.S. counts to international datasets that commonly use July 1 as the reference date ^{[4] [2]}.

3. Why other reputable sources give higher or lower totals

Private trackers and international compilations report a band of 2025 totals: Worldometer and other UN‑based interpolations list about 347.3 million for July 1, 2025 (and show “live” counters above that later), while Statista, Macrotrends and other data providers report figures clustered around 341.7 million to 341.8 million depending on their base data and update timing ^{[4] [3] [8]}. The Congressional Budget Office, which produces population projections for budget modeling and sometimes uses a “Social Security area” population definition and different policy assumptions, published projections treating 2025 as roughly 350 million in some updates — a number that reflects alternative definitions, the inclusion of territories or modeling choices about immigration policy and law changes rather than an official census headcount ^{[5] [9]}.

4. What accounts for the discrepancies: timing, definitions, and projections

Differences among numbers labeled “2025 population” come down to three straightforward technical gaps: the reference date (Jan 1 vs. July 1), the source (Census estimates vs. modelers or international agencies), and the metric (resident population vs. Social Security area population vs. interpolated UN estimates), each of which shifts totals by millions depending on births, deaths, migration flows, and whether territories are included ^{[6] [2] [9] [4]}. Projections made for budget or policy analysis, such as the CBO’s, intentionally incorporate law changes and assumptions about future immigration or fertility and therefore are not direct substitutes for the Census Bureau’s operational population clock ^{[5] [9]}.

5. Bottom line: the best single answer and the reasonable range

Given the available, authoritative reporting, the best single official answer is that the United States population at the start of 2025 was approximately 341,145,670 (Census Bureau, Jan 1, 2025) and about 342,034,432 by the midyear standard used by many demographers ^{[1] [2]}. Readers should expect alternative, reputable models and trackers to report a reasonable 2025 range from roughly 341.1–347.3 million depending on their conventions, with policy projection exercises sometimes citing even larger figures because they use different definitions or forward‑looking assumptions ^{[3] [4] [5]}.