Methodology
This page documents the primary sources, calculation framework, refresh cadence, and limitations behind the RN vs LPN salary, scope, education, and bridge-program data on this site. Every dollar figure traces back to a named, publicly accessible primary source. State board of nursing regulations are the authoritative reference for any scope-of-practice question.
Primary sources
The site relies on the following primary and authoritative sources. URLs are published as of May 2026.
| Source | Use on this site | Refresh cadence |
|---|---|---|
| BLS Occupational Employment Statistics | National, state, and metro-area average wages for RNs (occupational code 29-1141) and LPNs/LVNs (29-2061). Annual median, mean, 10th-90th percentile. | Annual (May data release) |
| BLS Occupational Outlook Handbook - Registered Nurses | Job outlook (6% growth 2022-2032, 177,400 new positions). Work environment distribution. Entry-level education requirement. | Annual |
| BLS Occupational Outlook Handbook - LPNs and LVNs | Job outlook (5% growth 2022-2032, 58,400 new positions). Work environment distribution. | Annual |
| NCSBN NCLEX Statistical Reports | First-attempt pass rates for US-educated candidates (NCLEX-RN approximately 87%, NCLEX-PN approximately 83%). Exam administration, retake windows, scheduling. | Quarterly |
| AACN Essentials and Nursing Education Reports | BSN curriculum essentials. ADN-to-BSN academic progression. ABSN program design. Faculty-shortage data on nursing-school applicant turn-away. | Per publication |
| ANA Scope and Standards of Practice | RN scope-of-practice framework. The state-level scope-of-practice variations reference back to ANA framework plus state board overrides. | Per publication |
| State Boards of Nursing (50 state directory via NCSBN) | State-specific licensure requirements, fees, and scope-of-practice regulations (especially LPN IV authority, medication permissions, supervision rules). Each state-salary page links to the state BON website. | Per state board publication |
| Bureau of Health Workforce | Nursing shortage projections by state. Health Resources and Services Administration nursing workforce reports. | Annual |
| ZipRecruiter, Indeed, Salary.com wage cross-references | Triangulation against BLS averages for metro-area and specialty-level salary ranges. Used where BLS lags by 12-18 months. | Continuous (live job-board data) |
| Nurse.org and NurseJournal | Industry cross-reference on advancement paths, sign-on bonuses, employer tuition assistance ranges, and bridge-program tuition cross-reference. | Continuous |
In scope
- US Registered Nurse (RN) and Licensed Practical Nurse / Licensed Vocational Nurse (LPN/LVN) credentialing comparison.
- Salary geography across all 50 US states, with metro-area breakdown for the 10 most-populous states currently covered (California, Texas, Florida, New York, Pennsylvania, Illinois, Ohio, Georgia, North Carolina, Michigan).
- Education paths: LPN certificate (12-18 months), ADN (2 years), BSN (4 years), ABSN (12-18 months for career-changers with a prior degree), LPN-to-RN bridge (12-24 months).
- Scope of practice: medication authority (oral, IM, IV push, IV drip, blood products, chemotherapy), IV initiation versus IV maintenance, triage authority, supervision of LPNs and CNAs, patient assessment authority.
- Career outlook: BLS-published growth projections, nursing shortage drivers (aging population, retiring workforce, school bottleneck, burnout), advancement pathways (NP, CRNA, CNS, CNM, management).
- Work setting distribution: hospitals, outpatient clinics, long-term care, home health, physician offices, schools, telehealth.
- LPN-to-RN bridge program economics: tuition, opportunity cost, salary delta, payback period.
Out of scope
- Individual nursing-licensure applications. Apply directly to your state board of nursing.
- Employer-specific salary negotiation. The site publishes national, state, and metro averages, not employer-specific offer letters.
- Non-US nursing systems. UK NMC RN registration, Canadian provincial RN registration, and Irish NMBI registration are out of scope. This site is US-only.
- Clinical-practice guidance. The site discusses scope of practice as a credentialling reference, not as clinical advice. Consult your state board, your employer policies, and your supervising clinician for practice questions.
- NCLEX exam coaching. The site publishes pass-rate statistics; it does not sell or recommend NCLEX prep materials.
- School-specific accreditation status. Verify nursing-school accreditation (ACEN, CCNE) directly with the accrediting body before enrolling.
Calculation framework
National average wages
$86,000 RN and $55,000 LPN are pulled from the most recent BLS OES national release for occupational codes 29-1141 and 29-2061. Rounded to the nearest $1,000 for snippet readability. The site reports BLS mean annual wage; the median figure is cross-referenced and disclosed where it differs materially.
State and metro averages
State-level numbers come from the BLS state-by-state wage tables for the same occupational codes. Metro-area numbers come from the BLS Metropolitan Statistical Area wage tables. Where BLS lags by 12-18 months, ZipRecruiter and Indeed live job-board data are cross-referenced and disclosed in the page-level note.
LPN-to-RN bridge ROI calculator
Payback formula: payback months = (tuition + opportunity cost during program) / (RN salary delta per month after taxes). Opportunity cost defaults to LPN base wage during full-time program, zero during part-time program. Salary delta uses state-specific RN versus LPN averages. The calculator on /lpn-to-rn lets users override tuition, opportunity cost, target state, and employer tuition assistance to model their specific situation.
Cost-of-living adjustment
Purchasing-power figures on state pages divide nominal salary by the state cost of living index (national average = 100). Sources are MERIC and the Council for Community and Economic Research COLI series. This gives a state-comparable purchasing-power number rather than the raw wage.
Education-cost ranges
LPN certificate ($10K-$20K), ADN ($10K-$40K), BSN ($40K-$100K), ABSN ($30K-$80K), bridge ($15K-$35K). These ranges aggregate published tuition from nursing-school programs cross-referenced against AACN and ACEN program directories. Specific-program tuition varies; verify directly with the school.
Shift differentials and bonuses
Night-shift (10-15%), weekend (5-10%), specialty (ICU, ER), and certification (CCRN, CEN) premiums are sourced from hospital published wage scales and nursing-industry surveys (Nurse.org compensation reports). Ranges reflect the distribution across major hospital systems; individual employers vary.
Refresh cadence
The site is reviewed against primary sources on a monthly cadence. The LAST_VERIFIED_DATE constant (currently May 2026) drives every freshness indicator on the site: footer stamp, hero badges, WebSite JSON-LD dateModified, and every Article and MedicalWebPage schema dateModified across all 17 content pages. Rolling one constant forward updates the whole site at once.
Out-of-cycle refresh triggers:
- New BLS OES annual release (typically May, sometimes pushed). All state and metro wage tables refresh from the new data.
- State board of nursing scope-of-practice rule change. The state page and /scope-of-practice page update with the rule change and the effective date.
- AACN BSN curriculum essentials revision. /education updates the curriculum section.
- NCSBN NCLEX statistical-report publication. Pass-rate figures on /education and home page update.
- Reader correction received via digitalsignet.com contact form. Acknowledged and addressed within 5 business days.
Limitations
- State scope-of-practice variance is real and meaningful. Some states permit LPNs to initiate IV access after additional certification; others restrict LPNs to maintaining existing IV infusions only. The site cites the general pattern; the state board of nursing is the authoritative source for your state.
- BLS data lag is 12-18 months. The most recent published release reflects conditions at the time of the underlying survey, not present-day wage levels. Where appropriate, ZipRecruiter and Indeed live data are cross-referenced.
- Hospital LPN employment has been declining for two decades. The 10% figure for LPNs in hospitals reflects current BLS data but the trend line is downward. LPN-positioned candidates should plan for long-term-care and home-health opportunities rather than acute hospital roles.
- National-average salaries mask 2x ranges. RN average $124,000 in California versus $66,000 in South Dakota is real. Always check the state-specific page for your location.
- Individual employer pay varies by hospital system, union status, and local market. The site publishes geographic and credentialling averages, not employer-specific offer letters.
- Nursing-school program tuition varies widely. Public community-college ADN programs can be under $10,000; private accelerated programs can exceed $100,000. Verify program-specific tuition directly with the institution.
Conflicts of interest
No paid placements. No live affiliate links on the site today. No undisclosed sponsorships, no nursing-school marketing partnerships, and no employer placement fees. Brand and institutional names appear for clinical, regulatory, or editorial specificity, not as endorsement. If this changes in the future, the disclosure will be added to /about and to this methodology page within the same publication.
Corrections process
For corrections to salary figures, scope-of-practice claims, education timelines, NCLEX statistics, or any other published content, email Digital Signet via digitalsignet.com with the page URL, the specific claim, and the primary-source citation you would like us to use. We aim to acknowledge and address corrections within 5 business days.
Reminder: this site is a credentialling and salary reference, not clinical-practice guidance and not a substitute for state board of nursing consultation. For licensure questions, contact your state board directly. For clinical-practice questions, consult your supervising clinician.