Republic of Sierra Leone vs United States of America
A neutral side-by-side of immigration systems, routes and regulators. Each row links to the underlying visa page with its primary government source.
Last reviewed:
Source basis
This comparison combines Republic of Sierra Leone and United States of America government portals with the primary sources for each side's dominant skilled route. Every detailed figure links through to the underlying route or data page.
Reviewed
Primary sources
- Sierra Leone Immigration Department
Sierra Leone Immigration Department - verified
- USCIS — U.S. Citizenship and Immigration Services
U.S. Citizenship and Immigration Services - verified
- Unified Permit portal
Unified Permit / Government of Sierra Leone - verified
- USCIS — H-1B Specialty Occupations
U.S. Citizenship and Immigration Services - verified
Republic of Sierra Leone
Sierra Leone publishes official immigration service links through the Sierra Leone Immigration Department, online entry visa filing through evisa.sl, and work and residence permit filing through the Unified Permit portal. The current Visa Atlas packet covers eVisa, residence permit, work permit, student residence, investor residence, and extension/re-entry handling. The Ministry of Labour website had an expired certificate during review, so work-permit coverage relies on the official Unified Permit portal and Immigration Department references rather than that host.
- Official portal
- Sierra Leone Immigration Department
- Languages
- English
- Currency
- Sierra Leonean leone
United States of America
The US issues nonimmigrant visas (H-1B, L-1, O-1, F-1, J-1) and immigrant visas (employment-based EB-1 through EB-5, family-based, diversity). Policy touchpoints span USCIS, DOS consulates, DOL (for PERM/LCA), and executive-branch proclamations that can shift overnight.
- Official portal
- U.S. Citizenship and Immigration Services
- Languages
- English (de facto)
- Currency
- United States dollar
How Republic of Sierra Leone and United States of America differ
| Dimension | Republic of Sierra Leone | United States of America |
|---|---|---|
| Total routes covered | 6 | 14 |
| Routes without employer sponsor | 4 | 5 |
| Routes leading to permanent residence | 0 | 6 |
| Typical full settlement timeline | — | Arrival on H-1B (3 years) → PERM + I-140 (1-2 years) → I-485 / Green Card (current for most categories, 7-15+ years for India EB-2) → citizenship at PR+5 years. |
| Dominant skilled visa | Work Permit | H-1B Specialty Occupation |
| Skilled visa salary minimum | — | US$62,000/year |
| Skilled visa processing time | — | USCIS — Case Processing Times does not publish one fixed, route-wide end-to-end processing time that can be stated responsibly for this application route. |
| Skilled visa government fees | — | A single initial H-1B petition costs around $3,600 in USCIS filing fees for a standard employer, excluding premium processing and the separate consular visa fee. |
| Official languages | English | English (de facto) |
| Currency | Sierra Leonean leone | United States dollar |
| Primary regulator | SLID | State bars |
| Policy changes (last 12 months) | 0 | 1 |
Skilled-route head-to-head
Comparing each country’s most-used skilled-migration route side by side.
Republic of Sierra Leone
Work Permit
- Salary minimum
- —
- Government fees
- —
- Processing time
- —
- Sponsor required
- Yes
- Leads to settlement
- No
United States of America
H-1B Specialty Occupation
- Salary minimum
- US$62,000/year
- Government fees
- A single initial H-1B petition costs around $3,600 in USCIS filing fees for a standard employer, excluding premium processing and the separate consular visa fee.
- Processing time
- USCIS — Case Processing Times does not publish one fixed, route-wide end-to-end processing time that can be stated responsibly for this application route.
- Sponsor required
- Yes
- Leads to settlement
- No
Routes unique to Republic of Sierra Leone
Routes unique to United States of America
Visa routes side by side
Republic of Sierra Leone (6)
eVisa
No sponsor · Non-settlement · Entry visa duration depends on the visa issued through the eVisa portal; confirm the live approval letter before travel.
Residence Permit
No sponsor · Non-settlement · Residence permit for long-term stay beyond 90 days; exact validity is selected in the live permit application.
Work Permit
Sponsor · Non-settlement · Work permit validity is selected in the live application and tied to the approved work or business basis.
Student Residence Permit
Sponsor · Non-settlement · Residence permit for study stays over 90 days; exact validity is selected in the live permit application.
Investor Residence Permit
No sponsor · Non-settlement · Residence permit for investor stays over 90 days; exact validity is selected in the live permit application.
Permit Extension and Re-entry
No sponsor · Non-settlement · Extension or re-entry validity depends on the existing permit and the process selected in the Unified Permit portal.
United States of America (14)
H-1B Specialty Occupation
Sponsor · Non-settlement · Initial 3 years; extendable to 6 years (longer with approved I-140).
L-1A Intracompany Transferee (Executive or Manager)
Sponsor · Non-settlement · Initial 3 years (1 year for new-office L-1A); extendable to 7 years total.
L-1B Intracompany Transferee (Specialised Knowledge)
Sponsor · Non-settlement · Initial 3 years (1 year for new-office L-1B); extendable to 5 years total.
O-1 Individuals with Extraordinary Ability or Achievement
Sponsor · Non-settlement · Up to 3 years initially; 1-year extensions available indefinitely.
EB-1A Extraordinary Ability (Immigrant)
No sponsor · Leads to settlement · Permanent residence (green card).
EB-2 National Interest Waiver (NIW)
No sponsor · Leads to settlement · Permanent residence.
EB-3 Skilled, Professional, and Other Workers
Sponsor · Leads to settlement · Permanent residence.
EB-5 Immigrant Investor Program
No sponsor · Leads to settlement · Conditional 2-year residence leading to unconditional permanent residence.
E-2 Treaty Investor
No sponsor · Non-settlement · Initial up to 2 years at port of entry (5-year visa stamp for many nationalities); renewable indefinitely.
F-1 Student Visa (with OPT and STEM OPT)
No sponsor · Non-settlement · Duration of study (D/S); OPT up to 12 months; STEM OPT extension up to 24 additional months.
J-1 Exchange Visitor
Sponsor · Non-settlement · Program-dependent: from weeks (intern) to up to 5 years (research scholar).
TN USMCA Professionals (Canada & Mexico)
Sponsor · Non-settlement · Up to 3 years; renewable indefinitely while activity continues.
K-1 Fiancé(e) of US Citizen
Sponsor · Leads to settlement · Single-entry 6 months; must marry within 90 days of entry.
Spouse of US Citizen or Green Card Holder (IR1/CR1 & F2A)
Sponsor · Leads to settlement · Permanent residence (conditional 2-year CR1 converts to 10-year card via I-751).
Frequently asked questions
Which country has an easier skilled-migration route, Republic of Sierra Leone or United States of America?+
Republic of Sierra Leone’s Work Permit is the dominant skilled route; United States of America’s H-1B Specialty Occupation requires US$62,000/year. “Easier” depends on your salary, sponsor situation, and nationality — see each visa’s eligibility detail.
Does Republic of Sierra Leone or United States of America have more visa routes without an employer sponsor?+
United States of America has more: 5 of its covered routes can be pursued without an employer sponsor, against 4 for Republic of Sierra Leone. No-sponsor routes — such as digital-nomad, self-employment, and points-based skilled migration — matter most if you do not yet have a job offer.
Cite or reuse this dataset
This comparison is free to reuse under CC BY 4.0. Cite the page for the compiled head-to-head table and use the country-comparisons JSON endpoint to retrieve the indexed pair, destination profiles and underlying source datasets.
Suggested citation
Visa Atlas, "Republic of Sierra Leone vs United States of America immigration comparison", https://visaatlas.org/compare/sierra-leone/vs/us. Last verified 29 June 2026.
- JSON endpoint
- https://visaatlas.org/api/public/country-comparisons